I downloaded a jq plug-in online, and the input box is bound to the click event, but the angular script I wrote myself also uses ng-keydown on the same input box. . . I thought Angular's keydown processing function would be executed, but it didn't work. . . But I can't remove the click event handler of the plug-in because its function needs to be used. . . Don’t know how to deal with this situation
给我你的怀抱2017-05-15 17:10:07
<body ng-app="myApp" ng-controller="MyController">
<!--自定义指令: 限制输入框中只能是1到100之间的数值-->
<input type="text" score>
<script type='text/javascript' src="angular.js"></script>
<script type="text/javascript">angular.module('myApp',[])
.directive('score', function () {
return {
link : function (scope, elements, attrs, controller) { //在显示之前执行, 只执行一次
//得到input
//console.log('link()',elements);
var input = elements[0]
//给input绑定keyup的监听回调函数
input.onkeyup = function () {
//读取input的value, 判断是否合法
var score = input.value.trim()
//如果合法, background为white
if(score==='' || (score*1>=1&&score*1<=100)) {
input.style.background = 'white'
} else {
//否则为red
input.style.background = 'red'
}
}
}
}
})
.controller('MyController', function($scope){
});
</script>
</body>
</html>
The keyup event I just wrote today, keydown is similar
仅有的幸福2017-05-15 17:10:07
You can’t write it like this,
The first choice is require: '?ngModel',
Then get the value of the text box ngModel.$modelValue instead of input.value,
There is also no need for elements [0], element represents
jquery The thinking is too serious. . .