角JS触发blur事件 [英] Angular js trigger blur event

问题描述

我试图安装一个输入，例如，当长度== 5时，会自动触发blur事件。我怎样才能做到这一点？

I'm trying to setup an input, such that when length == 5, it will automatically trigger a blur event. How can I do this?

这是pretty太多的概念：

This is pretty much the concept:

        <input type="tel" placeholder="type here." maxlength="5" name="digits" ng-model="digits" ng-change="if (digits.length ==5) { TRIGGER BLUR};">

感谢

推荐答案

下面是一个基本的指令，应该得到你在找什么：

Here is a basic directive that should get you what you are looking for:

app.directive('lengthChecker', function() {
  return function(scope, element, attributes) {
    scope.$watch(attributes.lengthChecker, function(newVal, oldVal) {
      if (newVal.length >= 5) element[0].blur();
    });
  };
});

HTML：

<input ng-model="digits" length-checker="digits"/>

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