javascript 流星从复选框 switchChange 中检索真/假值

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时间:2020-10-28 07:50:24  来源:igfitidea点击:

meteor retrieve true/false value from checkbox switchChange

javascriptjquerydommeteortwitter-bootstrap-3

提问by meteorBuzz

I have an event handler attached to checkboxes. I am using bootstrap switch http://www.bootstrap-switch.org/

我有一个附加到复选框的事件处理程序。我正在使用引导程序开关http://www.bootstrap-switch.org/

I am trying to get the state value which is either true or false into a variable so I can set it to the session value.

我试图将真或假的状态值放入变量中,以便我可以将其设置为会话值。

I can get the true or false value when the state changes (as seen in the rendered code). However, I would like to get this value within events. Please check my x variable.

当状态发生变化时,我可以获得 true 或 false 值(如呈现的代码所示)。但是,我想在事件中获得这个值。请检查我的 x 变量。

client.js

客户端.js

Template.myTemplate.rendered = function () {
 $('input[name="questions"]').bootstrapSwitch('state', true, true);
 $('input[name="questions"]').on('switchChange.bootstrapSwitch', function(event, state) {
 console.log(state); // true | false
});

html:

html:

<template name="myTemplate">
 <div class="row">
  <input type="checkbox"  name="questions" unchecked> Hobby?
 </div>
 <div class="row">
  <input type="checkbox" name="questions" unchecked> Writer?
 </div>

I am trying to get the value which is printed out in console.log(state)within the rendered code into a variable within my event so I can set the session to value to either true or false.

我试图将console.log(state)在渲染代码中打印出来的值放入我的事件中的变量中,以便我可以将会话的值设置为 true 或 false。

Template.myTemplate.events({
'click input': function(event) {
  var x = $(this).is(":checked").val();
  Session.set("statevalue", x);
  console.log(Session.get("statevalue")); // this is not printing out anything
 }
});

采纳答案by juliancwirko

You should use template instance:

您应该使用模板实例:

Template.myTemplate.events({
'click input': function(event, template) {
  var x = template.$('input').is(":checked").val();
  Session.set("statevalue", x);
  console.log(Session.get("statevalue"));
 }
});

or maybe with 'target':

或者可能与“目标”:

Template.myTemplate.events({
'click input': function(event) {
  var x = $(event.target).is(":checked").val();
  Session.set("statevalue", x);
  console.log(Session.get("statevalue"));
 }
});

回答by Pawe? Smo?ka

I think I have got a lot better sollution and not directly using JQuery:

我想我有更好的解决方案,而不是直接使用 JQuery:

Template.myTemplate.events({
'change input': function(event) {
  var x = event.target.checked;
  Session.set("statevalue", x);
  console.log(Session.get("statevalue"));
 }
});

Take care to see that I suggest you to use change instead of click in event.

请注意,我建议您使用更改而不是单击事件。

回答by user3410842

If you define id for your checkboxes, you could use

如果您为复选框定义 id,则可以使用

event.target.checkboxID.checked 

with in Template-event.

在模板事件中。

this will return true or false if checked or not.

如果选中与否,这将返回 true 或 false。

回答by meteorBuzz

Template.myTemplate.rendered = function () {
 $('input[name="questions"]').bootstrapSwitch('state', true, true);
 $('input[name="questions"]').on('switchChange.bootstrapSwitch', function(event, state) {
 var x = $(event.target).is(":checked");
 Session.set("statevalue", x);
  console.log(Session.get("statevalue"));
}); 
}

回答by Andy

'click .task_checkbox'(event){

    const target = event.target;
    var isChecked = $("#"+event.target.id).is(":checked").val();
    console.log(isChecked);

},

回答by Saeed D.

The eventobject already has all the information needed.

event对象已经拥有所需的所有信息。

Template.myTemplate.events({
  'click input': function(event) {
    if (event.target.name === 'questions') {
      Session.set("statevalue", event.target.checked);
      console.log(Session.get("statevalue"));
    }
  }
});