未捕获TypeError:无法使用Sencha读取未定义的属性“apply” [英] Uncaught TypeError: Cannot read property 'apply' of undefined with Sencha
问题描述
我有这个简单的代码:
items:[
{
name:horo
xtype:'togglefield',
label:'Horodateur?',
labelWidth:'55%',
disabled:false,
listeners:{
beforechange:function(slider,thumb,newValue,oldValue){
if(oldValue == 0&& newValue == 1){
alert(toto);
}
},
更改:function(slider,thumb,newValue,oldValue){
if(oldValue == 0&& newValue == 1){
alert(titi);
}
else if(oldValue == 1&& newValue == 0)
alert(tata);
}
}
},
我有这个错误在我的控制台上:
未捕获TypeError:无法读取未定义的属性apply。
有什么问题?
我的控制台说别的什么,也许$ code> Controller.js 是问题。
我也有同样的问题。
当您定义一些监听器并且您没有在控制器中定义该函数时,可能会发生此问题。
我可以看到beforechange和change有功能,所以也许你的代码中有更多的项目,你没有在论坛中显示。如果有一个监听器和一个不存在的函数的侦听器引用,那么你会得到一个错误。
未捕获TypeError:无法读取未定义的属性apply
I have some problems with sencha touch. I have this simple code :
items: [
{
name: "horo",
xtype: 'togglefield',
label: 'Horodateur ?',
labelWidth: '55%',
disabled: false,
listeners: {
beforechange: function (slider, thumb, newValue, oldValue) {
if (oldValue == 0 && newValue == 1) {
alert("toto");
}
},
change: function (slider, thumb, newValue, oldValue) {
if (oldValue == 0 && newValue == 1) {
alert("titi");
}
else if (oldValue == 1 && newValue == 0)
alert("tata");
}
}
},
And I have this error on my console :
Uncaught TypeError: Cannot read property 'apply' of undefined.
What's the problem ?
My console say something else, maybe the Controller.js
is the problem.
I had the same problem. This problem can occur when you define some listeners and you did not define the function in your controller. I can see that beforechange and change have functions so maybe there are more items in your code that you have not shown here in the forum. If there are listeners and the listener referer to a function that do not exist then you will get an error. "Uncaught TypeError: Cannot read property 'apply' of undefined"
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