如何修复 AJAX 在选中复选框时始终触发？

2024-05-09

有时这个 AJAX 会触发，有时不会，让我解释一下。

habit.js

$(document).ready(function()
{
  $(".habit-check").change(function()
  {
    habit = $(this).parent().siblings(".habit-id").first().attr("id");
    level = $(this).siblings(".level-id").first().attr("id");
    if($(this).is(":checked"))
    {
       $.ajax(
       {
         url: "/habits/" + habit + "/levels/" + level + "/days_missed",
         method: "POST"
       });
    }
    else
    {
       $.ajax(
       {
         url: "/habits/" + habit + "/levels/" + level + "/days_missed/1",
         method: "DELETE"
       });
    }
  });
});

它仅在我加载显示页面并刷新它后才会触发，以便终端看起来像这样：

Started GET "/habits/1" for ::1 at 2015-06-20 23:55:42 -0400
Processing by HabitsController#show as HTML
  Parameters: {"id"=>"1"}
  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1  [["id", 1]]
  Habit Load (0.1ms)  SELECT "habits".* FROM "habits" WHERE "habits"."user_id" = ?  [["user_id", 1]]
  ActsAsTaggableOn::Tag Load (0.2ms)  SELECT "tags".* FROM "tags" WHERE (LOWER(name) = LOWER('ingrain'))
  CACHE (0.0ms)  SELECT "habits".* FROM "habits" WHERE "habits"."user_id" = ?  [["user_id", 1]]
  Level Load (0.2ms)  SELECT "levels".* FROM "levels" WHERE "levels"."habit_id" = ?  [["habit_id", 1]]
  ActsAsTaggableOn::Tag Load (0.3ms)  SELECT  DISTINCT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."tagger_id" = ? AND "taggings"."tagger_type" = ?  ORDER BY taggings_count desc LIMIT 20  [["tagger_id", 1], ["tagger_type", "User"]]
   (0.1ms)  SELECT COUNT(*) FROM "habits" WHERE "habits"."user_id" = ?  [["user_id", 1]]
  Habit Load (0.1ms)  SELECT  "habits".* FROM "habits" WHERE "habits"."id" = ? LIMIT 1  [["id", 1]]
  CACHE (0.0ms)  SELECT  "habits".* FROM "habits" WHERE "habits"."id" = ? LIMIT 1  [["id", "1"]]
  Habit Load (0.1ms)  SELECT  "habits".* FROM "habits" WHERE "habits"."user_id" = ? AND "habits"."id" = ? LIMIT 1  [["user_id", 1], ["id", 1]]
  CACHE (0.0ms)  SELECT "levels".* FROM "levels" WHERE "levels"."habit_id" = ?  [["habit_id", 1]]
  ActsAsTaggableOn::Tag Load (0.2ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = ? AND "taggings"."taggable_type" = ? AND (taggings.context = 'tags') GROUP BY tags.id  [["taggable_id", 1], ["taggable_type", "Habit"]]
  Note Load (0.1ms)  SELECT "notes".* FROM "notes" WHERE "notes"."habit_id" = ?  ORDER BY notes_date  [["habit_id", 1]]
  Rendered notes/_notes.html.erb (2.0ms)
  Rendered notes/_form.html.erb (3.9ms)
  User Load (0.1ms)  SELECT "users".* FROM "users" INNER JOIN "habit_likes" ON "users"."id" = "habit_likes"."user_id" WHERE "habit_likes"."habit_id" = ?  [["habit_id", 1]]
  Comment Load (0.1ms)  SELECT "comments".* FROM "comments" WHERE "comments"."habit_id" = ?  [["habit_id", 1]]
  Rendered comments/_comments.html.erb (0.8ms)
  Rendered comments/_form.html.erb (1.0ms)
  Rendered habits/show.html.erb within layouts/application (24.0ms)
   (0.2ms)  SELECT COUNT(*) FROM "notifications" WHERE "notifications"."user_id" = ?  [["user_id", 1]]
  Rendered layouts/_header.html.erb (2.9ms)
   (0.1ms)  SELECT COUNT(*) FROM "habits" WHERE "habits"."user_id" = ? AND 1=0  [["user_id", 1]]
  Rendered habits/_today.html.erb (1.0ms)
  Goal Load (0.2ms)  SELECT  "goals".* FROM "goals" WHERE "goals"."user_id" = ? AND "goals"."accomplished" = 'f'  ORDER BY deadline LIMIT 3  [["user_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "users" INNER JOIN "relationships" ON "users"."id" = "relationships"."followed_id" WHERE "relationships"."follower_id" = ?  [["follower_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "goals" WHERE "goals"."user_id" = ? AND "goals"."accomplished" = 'f'  [["user_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "quantifieds" WHERE "quantifieds"."user_id" = ?  [["user_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "users" INNER JOIN "relationships" ON "users"."id" = "relationships"."follower_id" WHERE "relationships"."followed_id" = ?  [["followed_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "goals" WHERE "goals"."user_id" = ? AND "goals"."accomplished" = 't'  [["user_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "results" INNER JOIN "quantifieds" ON "results"."quantified_id" = "quantifieds"."id" WHERE "quantifieds"."user_id" = ? AND "results"."bad" = 'f'  [["user_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "valuations" WHERE "valuations"."user_id" = ?  [["user_id", 1]]
  Rendered layouts/_count.html.erb (10.7ms)
  Rendered layouts/_tags.html.erb (0.1ms)
  Rendered layouts/_recommendations.html.erb (0.0ms)
  Quantified Load (0.1ms)  SELECT "quantifieds".* FROM "quantifieds" WHERE "quantifieds"."user_id" = ? AND "quantifieds"."categories" = ?  [["user_id", 1], ["categories", "Averaged"]]
  Quantified Load (0.1ms)  SELECT "quantifieds".* FROM "quantifieds" WHERE "quantifieds"."user_id" = ? AND "quantifieds"."categories" = ?  [["user_id", 1], ["categories", "Instance"]]
   (0.1ms)  SELECT COUNT(*) FROM "valuations" WHERE "valuations"."user_id" = ? AND (1 = 0)  [["user_id", 1]]
  Rendered layouts/_value.html.erb (0.8ms)
  Rendered layouts/_sidebar.html.erb (18.9ms)
Completed 200 OK in 324ms (Views: 307.4ms | ActiveRecord: 3.3ms)


Started GET "/assets/application-2b528cffd402884831208f505b651927.css?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/jquery-ea2706bc2d0586731b7c00ec2cd0a414.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/stylesheet-3e834b3a950daa6165191fa42b13a968.css?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/jquery_ujs-29277b946c1d3754af13672bfec0c660.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/bootstrap-d16805677947f8c7ce91cea7ae7f82b0.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/cocoon-07a2b3765fb91baf2df1cea98d97eed0.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/turbolinks-3a7cdb8630f3e86770867bd488a098e0.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/account_activations-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/comments-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/days_missed-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/facebook-faaf7b74474e5a746a0c4a160e4705d2.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/habit-ff66f57b87d00b4469848f1af3f6910a.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/habits-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/activities-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/pages-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/password_resets-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/notes-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/quantified-5cae96afee8ab50e506c00828f3042b3.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/goals-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/quantifieds-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/relationships-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/sessions-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/notifications-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/tags-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/users-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/values-8f6eecd1178ef85964369ec66d33c4f1.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/application-6fd7d78d93af9f6901c08c3bc66303d0.js?body=1" for ::1 at 2015-06-20 23:55:42 -0400


Started GET "/assets/bootstrap/glyphicons-halflings-regular-195cb410b49d75c104a5bc6ad385ac77.woff" for ::1 at 2015-06-20 23:55:43 -0400

仅加载一次显示页面不会完成这项工作，因为复选标记不会触发 AJAX（注意上面所有的 GET 和下面缺少 GET，我认为这与 Turbolinks 有关）。

Started GET "/habits/1" for ::1 at 2015-06-21 00:09:02 -0400
Processing by HabitsController#show as HTML
  Parameters: {"id"=>"1"}
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1  [["id", 1]]
  Habit Load (0.1ms)  SELECT "habits".* FROM "habits" WHERE "habits"."user_id" = ?  [["user_id", 1]]
  ActsAsTaggableOn::Tag Load (0.2ms)  SELECT "tags".* FROM "tags" WHERE (LOWER(name) = LOWER('ingrain'))
  CACHE (0.0ms)  SELECT "habits".* FROM "habits" WHERE "habits"."user_id" = ?  [["user_id", 1]]
  Level Load (0.2ms)  SELECT "levels".* FROM "levels" WHERE "levels"."habit_id" = ?  [["habit_id", 1]]
  ActsAsTaggableOn::Tag Load (0.2ms)  SELECT  DISTINCT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."tagger_id" = ? AND "taggings"."tagger_type" = ?  ORDER BY taggings_count desc LIMIT 20  [["tagger_id", 1], ["tagger_type", "User"]]
   (0.1ms)  SELECT COUNT(*) FROM "habits" WHERE "habits"."user_id" = ?  [["user_id", 1]]
  Habit Load (0.1ms)  SELECT  "habits".* FROM "habits" WHERE "habits"."id" = ? LIMIT 1  [["id", 1]]
  CACHE (0.0ms)  SELECT  "habits".* FROM "habits" WHERE "habits"."id" = ? LIMIT 1  [["id", "1"]]
  Habit Load (0.1ms)  SELECT  "habits".* FROM "habits" WHERE "habits"."user_id" = ? AND "habits"."id" = ? LIMIT 1  [["user_id", 1], ["id", 1]]
  CACHE (0.0ms)  SELECT "levels".* FROM "levels" WHERE "levels"."habit_id" = ?  [["habit_id", 1]]
  ActsAsTaggableOn::Tag Load (0.1ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = ? AND "taggings"."taggable_type" = ? AND (taggings.context = 'tags') GROUP BY tags.id  [["taggable_id", 1], ["taggable_type", "Habit"]]
  Note Load (0.1ms)  SELECT "notes".* FROM "notes" WHERE "notes"."habit_id" = ?  ORDER BY notes_date  [["habit_id", 1]]
  Rendered notes/_notes.html.erb (1.1ms)
  Rendered notes/_form.html.erb (3.2ms)
  User Load (0.1ms)  SELECT "users".* FROM "users" INNER JOIN "habit_likes" ON "users"."id" = "habit_likes"."user_id" WHERE "habit_likes"."habit_id" = ?  [["habit_id", 1]]
  Comment Load (0.1ms)  SELECT "comments".* FROM "comments" WHERE "comments"."habit_id" = ?  [["habit_id", 1]]
  Rendered comments/_comments.html.erb (0.9ms)
  Rendered comments/_form.html.erb (1.1ms)
  Rendered habits/show.html.erb within layouts/application (21.4ms)
   (0.1ms)  SELECT COUNT(*) FROM "notifications" WHERE "notifications"."user_id" = ?  [["user_id", 1]]
  Rendered layouts/_header.html.erb (2.3ms)
   (0.1ms)  SELECT COUNT(*) FROM "habits" WHERE "habits"."user_id" = ? AND 1=0  [["user_id", 1]]
  Rendered habits/_today.html.erb (0.9ms)
  Goal Load (0.2ms)  SELECT  "goals".* FROM "goals" WHERE "goals"."user_id" = ? AND "goals"."accomplished" = 'f'  ORDER BY deadline LIMIT 3  [["user_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "users" INNER JOIN "relationships" ON "users"."id" = "relationships"."followed_id" WHERE "relationships"."follower_id" = ?  [["follower_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "goals" WHERE "goals"."user_id" = ? AND "goals"."accomplished" = 'f'  [["user_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "quantifieds" WHERE "quantifieds"."user_id" = ?  [["user_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "users" INNER JOIN "relationships" ON "users"."id" = "relationships"."follower_id" WHERE "relationships"."followed_id" = ?  [["followed_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "goals" WHERE "goals"."user_id" = ? AND "goals"."accomplished" = 't'  [["user_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "results" INNER JOIN "quantifieds" ON "results"."quantified_id" = "quantifieds"."id" WHERE "quantifieds"."user_id" = ? AND "results"."bad" = 'f'  [["user_id", 1]]
   (0.1ms)  SELECT COUNT(*) FROM "valuations" WHERE "valuations"."user_id" = ?  [["user_id", 1]]
  Rendered layouts/_count.html.erb (9.3ms)
  Rendered layouts/_tags.html.erb (0.0ms)
  Rendered layouts/_recommendations.html.erb (0.1ms)
  Quantified Load (0.1ms)  SELECT "quantifieds".* FROM "quantifieds" WHERE "quantifieds"."user_id" = ? AND "quantifieds"."categories" = ?  [["user_id", 1], ["categories", "Averaged"]]
  Quantified Load (0.1ms)  SELECT "quantifieds".* FROM "quantifieds" WHERE "quantifieds"."user_id" = ? AND "quantifieds"."categories" = ?  [["user_id", 1], ["categories", "Instance"]]
   (0.1ms)  SELECT COUNT(*) FROM "valuations" WHERE "valuations"."user_id" = ? AND (1 = 0)  [["user_id", 1]]
  Rendered layouts/_value.html.erb (0.8ms)
  Rendered layouts/_sidebar.html.erb (17.6ms)
Completed 200 OK in 318ms (Views: 301.9ms | ActiveRecord: 3.1ms)

This 显示页面调用 AJAX

<div class="strikes">
  <% if @habit.current_level_strike %> 
    <div class="btn" id="red"> <label id="<%= @habit.id %>" class="habit-id">Strikes:</label>
  <% else %> 
    <div class="btn" id="gold"> <label id="<%= @habit.id %>" class="habit-id-two">Strikes:</label>
  <% end %>
    <% @habit.levels.each_with_index do |level, index| %>
      <% if @habit.current_level >= (index + 1) %>
        <p>
          <% if @habit.current_level_strike %> 
            <label id="<%= level.id %>" class="level-id">Level <%= index + 1 %>:</label> 
          <% else %> 
            <label id="<%= level.id %>" class="level-id-two">Level <%= index + 1 %>:</label> 
          <% end %>
          <%= check_box_tag nil, true, level.missed_days > 0, {class: "habit-check"} %>
          <%= check_box_tag nil, true, level.missed_days > 1, {class: "habit-check"} %>
          <%= check_box_tag nil, true, level.missed_days > 2, {class: "habit-check"} %>
       </p>
      <% end %>
    <% end %>
  </div>
</div>

这就是 AJAX 触发的原因，days_missed_controller.rb.

class DaysMissedController < ApplicationController
  before_action :logged_in_user, only: [:create, :destroy]

  def create
    habit = Habit.find(params[:habit_id])
    habit.missed_days = habit.missed_days + 1
    @habit.save!
    level = habit.levels.find(params[:level_id])
    level.missed_days = level.missed_days + 1
    if level.missed_days == 3
      level.missed_days = 0
      level.days_lost += habit.calculate_days_lost + 1
    end
    level.save!
    head :ok # this returns an empty response with a 200 success status code
  end

  def destroy
    habit = Habit.find(params[:habit_id])
    habit.missed_days = habit.missed_days - 1
    habit.save!
    level = habit.levels.find(params[:level_id])
    level.missed_days = level.missed_days - 1
    level.save!
    head :ok # this returns an empty response with a 200 success status code
  end
end

这是gist http://gist.github.com/RallyWithGalli/c66dee6dfb9ab5d338c2它的。抱歉，我是 AJAX 新手，并获得了这方面的帮助，所以我的描述水平可能很初级。请随时要求进一步说明或代码:-]

UPDATE

换句话说，如果用户加载显示页面，然后选中复选框，则不会向服务器发送任何内容；如果用户加载显示页面然后刷新它，则检查此 POST 在服务器中进行的复选框：

Started POST "/habits/1/levels/1/days_missed" for 127.0.0.1 at 2015-06-22 02:15:21 -0400
Processing by DaysMissedController#create as */*
  Parameters: {"habit_id"=>"1", "level_id"=>"1"}
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1  [["id", 1]]
  Habit Load (0.2ms)  SELECT "habits".* FROM "habits" WHERE "habits"."user_id" = ?  [["user_id", 1]]
  ActsAsTaggableOn::Tag Load (0.3ms)  SELECT "tags".* FROM "tags" WHERE (LOWER(name) = LOWER('ingrain'))
  CACHE (0.0ms)  SELECT "habits".* FROM "habits" WHERE "habits"."user_id" = ?  [["user_id", 1]]
  Level Load (0.2ms)  SELECT "levels".* FROM "levels" WHERE "levels"."habit_id" = ?  [["habit_id", 1]]
  ActsAsTaggableOn::Tag Load (0.3ms)  SELECT  DISTINCT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."tagger_id" = ? AND "taggings"."tagger_type" = ?  ORDER BY taggings_count desc LIMIT 20  [["tagger_id", 1], ["tagger_type", "User"]]
   (0.1ms)  SELECT COUNT(*) FROM "habits" WHERE "habits"."user_id" = ?  [["user_id", 1]]
  Habit Load (0.1ms)  SELECT  "habits".* FROM "habits" WHERE "habits"."user_id" = ? AND "habits"."id" = ? LIMIT 1  [["user_id", 1], ["id", 1]]
  Habit Load (0.1ms)  SELECT  "habits".* FROM "habits" WHERE "habits"."id" = ? LIMIT 1  [["id", 1]]
   (0.1ms)  begin transaction
  CACHE (0.0ms)  SELECT "levels".* FROM "levels" WHERE "levels"."habit_id" = ?  [["habit_id", 1]]
  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1  [["id", 1]]
  ActsAsTaggableOn::Tag Load (0.2ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = ? AND "taggings"."taggable_type" = ? AND (taggings.context = 'tags' AND taggings.tagger_id IS NULL)  [["taggable_id", 1], ["taggable_type", "Habit"]]
  CACHE (0.0ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = ? AND "taggings"."taggable_type" = ? AND (taggings.context = 'tags' AND taggings.tagger_id IS NULL)  [["taggable_id", 1], ["taggable_type", "Habit"]]
  ActsAsTaggableOn::Tag Load (0.1ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = ? AND "taggings"."taggable_type" = ? AND (taggings.context = 'tags' AND
                                    taggings.tagger_id = 1 AND
                                    taggings.tagger_type = 'User')  [["taggable_id", 1], ["taggable_type", "Habit"]]
   (0.1ms)  commit transaction
  Level Load (0.2ms)  SELECT  "levels".* FROM "levels" WHERE "levels"."habit_id" = ? AND "levels"."id" = ? LIMIT 1  [["habit_id", 1], ["id", 1]]
   (0.1ms)  begin transaction
  SQL (0.3ms)  UPDATE "levels" SET "missed_days" = ?, "updated_at" = ? WHERE "levels"."id" = ?  [["missed_days", 1], ["updated_at", "2015-06-22 06:15:21.959609"], ["id", 1]]
   (2.8ms)  commit transaction
Completed 200 OK in 40ms (ActiveRecord: 5.4ms)

这可能是 Turbolinks 的问题，您可以尝试更改您的 javascript：

$(document).ready(function()
{
  // ...
}

看起来像：

$(document).on("ready page:load", function() {
  // ..
}

请告诉我是否有帮助！

祝你好运！

本文内容由网友自发贡献，版权归原作者所有，本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容，请联系:hwhale#tublm.com(使用前将#替换为@)

javascript

jQuery

rubyonrails

ruby

AJAX

如何修复 AJAX 在选中复选框时始终触发？的相关文章

如何按照编写的顺序迭代 javascript 对象属性

我发现了代码中的一个错误我希望通过最少的重构工作来解决该错误此错误发生在 Chrome 和 Opera 浏览器中问题 var obj 23 AA 12 BB iterating through obj s properties for
即使我可以监视其他方法，也无法监视事件处理程序

我想使用 Jest Jasmine Enzyme 测试 React 中的事件处理程序 MyComponent js import React from react class MyComponent extends React Compon
检查 touchend 是否在拖动后出现

我有一些代码可以更改表的类在手机上有时表格对于屏幕来说太宽用户将拖动滚动来查看内容但是当他们触摸并拖动表格时每次拖动都会触发 touchend 如何测试触摸端是否是触摸拖动的结果我尝试跟踪dragstart和dragend
仅一页 JavaScript 应用程序

您是否尝试过单页 Web 应用程序即浏览器仅从服务器获取一页其余部分由客户端 JavaScript 代码处理此类应用程序页面的一个很好的例子是 Gmail 对于更简单的应用程序例如博客和 CMS 使用这种方法有哪些优点和缺点
如何使用 JavaScript 获取没有 HTML 元素的纯文本？

我的 HTML 中有 1 按钮和一些文本如下所示 function get content I don t know how to do in here
在为 RXJS 可观察量编写测试时，如何避免让调度程序通过我的业务逻辑？

我发现使某些测试通过的唯一方法是显式地将调度程序传递给函数为了便于说明请考虑以下函数 function doStuff stream return stream delay 100 filter x gt x 2 0 map x gt
如何让 jquery Tooltipster 插件适用于新创建的 DOM 元素？

我正在使用 Tooltipster 插件http calebjacob com tooltipster http calebjacob com tooltipster 这很棒但我已经动态生成了插入到 DOM 中的内容工具提示程序似乎没有
回形针/乘客 NotIdentifiedByImageMagickError：

当我尝试上传照片时红宝石 on Rails http en wikipedia org wiki Ruby on Rails using 回形针 http github com thoughtbot paperclip在我的本地机器上它运行
使用 JS 合并具有相同值的相邻 HTML 表格单元格

我已经为此苦苦挣扎了一段时间我有一个根据一些 JSON 数据自动生成的表该数据可能会有所不同我想合并第一列中具有相同值的相邻单元格例如此表中的鱼和鸟 table tr td fish td td salmon td tr tr
JQuery 验证在 IE8 中不起作用

我使用 JQuery 验证脚本来验证 HTML 表单这在 Firefox 中完美运行但在 IE8 中不起作用我认为冒号或分号有问题但我无法抓住它 jQuery validator addMethod selectNone fun
单击关闭按钮后不显示 Google 一键登录 UI

我正在尝试按照本指南使新的谷歌一键登录工作 https developers google com identity one tap web https developers google com identity one tap web
Twitter 嵌入时间轴小部件

我继续下载http platform twitter com widgets js http platform twitter com widgets js And the http platform twitter com embed t
查询为空 Node Js Sequelize

我正在尝试更新 Node js 应用程序中的数据我和邮递员测试过我的开发步骤是从数据库 MySQL 获取ID为10的数据进行更新 gt gt 未处理的拒绝SequelizeDatabaseError 查询为空我认识到我使用了错误的
:jQuery / Sizzle 中的 nth-of-type()？

让我惊讶的是Sizzle http sizzlejs com jQuery 使用的选择器引擎带有一个内置的 nth child 选择器但缺少 nth of type 选择器为了说明之间的区别 nth child and nth of
JavaScript 代码在不使用 ActiveX 的情况下截取网站屏幕截图

我有一个用户与之交互的 JavaScript 应用程序我需要保存当前界面的外观裁剪出我需要的部分或者通过指定div只拍摄我需要的部分然后发送回服务器显然任何外部服务都无法做到这一点我需要一个 JavaScript 或Flash
显示覆盖以覆盖整个页面

我有一个正在加载的网络应用程序iframe 我需要显示一个覆盖 div 来覆盖整个页面问题是叠加层当前仅显示在iframe区域而不覆盖整个页面我们的应用程序子应用程序是加载的一组应用程序的一部分iframe 你可以做这样的事情 di
如何在打字稿文件中导入没有定义文件的js库

随着我们的项目变得越来越大我想从 JavaScript 切换到 TypeScript 以帮助进行代码管理然而我们使用许多库作为 amd 模块我们不想将其转换为 TypeScript 我们仍然想将它们导入 TypeScript 文件
如何在 gulp.src 中使用基本正则表达式？

我正在尝试选择两个文件gulp src highcharts js and highcharts src js 当然我知道我可以使用数组表达式显式添加这两个表达式但出于学习目的我尝试为它们编写一个表达式我读过可以使用简单的正则表达式
单击列表时使用 bootstrap Dropdown 防止下拉菜单消失

我正在使用使用引导下拉菜单 http twitter github com bootstrap javascript html dropdowns生成下拉菜单我想防止点击菜单时菜单消失我已经实现了以下代码但它不起作用知道如何修复它吗
用于 C# XNA 的 Javascript（或类似）游戏脚本

最近我准备用 XNA C 开发另一个游戏上次我在 XNA C 中开发游戏时遇到了必须向游戏中添加地图和可自定义数据的问题每次我想添加新内容或更改游戏角色的某些值或其他内容时我都必须重建整个游戏或其他内容这可能需要相当长的时间有没

随机推荐

django 组合对两个不同基本模型的查询

我有两个不同的查询集我想将两个查询集合并 q1 tbl nt 123 objects values list id value geometry filter restriction height exclude condition id
Sql 查询抛出标识符太长。最大长度为 128

我正在处理一个简单的更新查询在执行查询时看到以下错误我非常清楚这根本不应该是一个长度问题可能是什么问题 Error 以identifier开头的标识符太长最大长度为 128 我的查询 update dbo DataSettings
将 Objective-C 框架 (CocoaPod) 导入 Swift？

我正在尝试导入libjingle peerconnection框架到我的 Xcode 项目中但由于某种原因我无法使用以下命令导入 Objective C 标头import RTCICEServer在 Swift 源文件中我尝试使用头文
ReactJs - 是否可以根据组件树的状态设置 url 或查询字符串

我有一个组件其中有多个嵌套组件特别是选项卡药丸等任何时候都无法看到所有组件我希望能够根据 URL 参数或 URL 设置它们的默认状态属性但我不清楚如何在 React 中实现这一点例如我有一个带有两个选项卡的组件引导程序
可选链接在 create-react-app 中不起作用

In a create react app项目我正在使用 babel plugin proposal optional chaining在我的 babelrc中但是我有这个错误 Module parse failed Unexpect
Hudson 和电子邮件通知

我可以覆盖每个作业的 Hudson 设置系统管理员电子邮件地址吗阅读了一些源代码http sorcerer jenkins ci org http sorcerer jenkins ci org and hudson tasks Ma
在结果中只显示一列？

这是一个简单的问题但如何在下面的代码中选择特定的列我只想显示时间列而不显示其他任何内容我尝试输入 FORMAT TABLE TIME 但它只是多次填充 TIME 而没有实际显示时间 server event Get Conten
用于 Flutter 原生广告的 Objective-C 的 Swift 等效项

我想为我的 Flutter 项目实现原生广告它使用 Swift 而不是 Objective C https developers google com admob flutter native https developers googl
尝试将 indexPath 保存到 NSUserDefaults 时出错

我试图保存 UICollectionView 的索引路径但出现以下错误 libc abi dylib terminating with uncaught exception of type NSException 我的代码是保存索引路径
动画结束后更改视图位置

我开发了一个基于ViewGroup我的问题是我需要在动画结束后保存项目的位置我打了电话setFillAfter true 在我创建的动画对象中AnimationListener并在其中onAnimationEnd方法调用View layo
VNFaceObservation BoundingBox 在纵向模式下不缩放

作为参考这源于一个问题视觉API 我正在努力使用Vision通过a检测图像中的人脸VNDetectFaceRectanglesRequest 它在确定图像中正确的人脸数量并提供boundingBox对于每张脸我的麻烦是由于我UIImag
为什么 Node.js 命名为 Node.js？ [关闭]

Closed 这个问题是无关 help closed questions 目前不接受答案我只是好奇为什么 Node js 这么命名我搜索了他们的网站和常见问题解答但没有任何内容可以帮助我理解为什么它被命名为 Node js 官方名称其
SQL Server - 在设置 COLLATE Latin1_General_CS_AS 的情况下搜索不区分大小写

家长提问 https stackoverflow com questions 50974562 sql server update to match and replace only exact words感谢 Iamdave 部分问题得到
C++ [Windows] 可执行文件所在文件夹的路径[重复]

这个问题在这里已经有答案了我需要访问一些文件fstream在我的 Windows 上的 C 应用程序中这些文件都位于我的exe文件所在文件夹的子文件夹中获取当前可执行文件的文件夹路径的最简单且更重要的最安全的方法是什么 Use 获取
底部带有三角形的蒙版图像

我正在尝试找出如何最好地掩盖具有像这样的角度形状的 div 如果在这种情况下顶部 div 将是背景图像并且两个 div 都是 100 宽度我看过很多关于如何用圆形遮罩图像的教程但没有关于如何遮罩红色区域等 div 边框的教程我知道一
使用 OAuth2 隐式流程（IdentityServer4），用户是否必须在每次访问令牌过期时重新输入密码？

我需要为 Angular2 客户端 Web 应用程序实现授权身份验证才能与资源服务器 WebApi 通信我正在调查 IdentiyServer4 并选择授予类型流程 HERE http docs identityserver io e
错误：类型 typeof Observable 上不存在属性计时器

代码如下 import Component from angular2 core import Observable from rxjs Rx Component selector my app template Ticks every s
WCF 客户端因服务中断而挂起

我有一个相当简单的 WCF 服务它为一堆智能客户端执行单向文件同步我注意到当通话期间出现网络或服务中断时客户端将无法与服务器通信直到整个应用程序重新启动该服务运行于BasicHttpBinding并由 IIS6 一个 svc 页
在 Tensorflow 2.0 中的简单 LSTM 层之上添加 Attention

我有一个由一个 LSTM 和两个 Dense 层组成的简单网络如下所示 model tf keras Sequential model add layers LSTM 20 input shape train X shape 1 trai
如何修复 AJAX 在选中复选框时始终触发？

有时这个 AJAX 会触发有时不会让我解释一下 habit js document ready function habit check change function habit this parent siblings habit

如何修复 AJAX 在选中复选框时始终触发？

UPDATE

如何修复 AJAX 在选中复选框时始终触发？ 的相关文章

随机推荐

热门标签

如何修复 AJAX 在选中复选框时始终触发？的相关文章