Detailed explanation of how to implement custom instructions in AngularJS

This article mainly introduces the method of implementing custom instructions and instruction configuration items in AngularJS. It briefly summarizes and analyzes the implementation skills of AngularJS custom instructions and instruction configuration items in the form of examples. Friends in need can refer to it. I hope it can help everyone. .

There are two ways to write AngularJS custom directives:

//第一种
angular.module('MyApp',[])
.directive('zl1',zl1)
.controller('con1',['$scope',func1]);
function zl1(){
  var directive={
    restrict:'AEC',
   template:'this is the it-first directive',
  };
  return directive;
};
function func1($scope){
  $scope.name="alice";
}
//第二种
angular.module('myApp',[]).directive('zl1',[ function(){
 return {
  restrict:'AE',
  template:'thirective',
  link:function($scope,elm,attr,controller){
   console.log("这是link");
  },
  controller:function($scope,$element,$attrs){
   console.log("这是con");
  }
 };
}]).controller('Con1',['$scope',function($scope){
 $scope.name="aliceqqq";
}]);

directive Configuration item

angular.module('myApp', []).directive('first', [ function(){
  return {
    // scope: false, // 默认值，共享父级作用域
    // controller: function($scope, $element, $attrs, $transclude) {},
    restrict: 'AE', // E = Element, A = Attribute, C = Class, M = Comment
    template: 'first name:{{name}}',
  };
}]).directive('second', [ function(){
  return {
    scope: true, // 继承父级作用域并创建指令自己的作用域
    // controller: function($scope, $element, $attrs, $transclude) {},
    restrict: 'AE', // E = Element, A = Attribute, C = Class, M = Comment
    //当修改这里的name时，second会在自己的作用域中新建一个name变量，与父级作用域中的
    // name相对独立，所以再修改父级中的name对second中的name就不会有影响了
    template: 'second name:{{name}}',
  };
}]).directive('third', [ function(){
  return {
    scope: {}, // 创建指令自己的独立作用域，与父级毫无关系
    // controller: function($scope, $element, $attrs, $transclude) {},
    restrict: 'AE', // E = Element, A = Attribute, C = Class, M = Comment
    template: 'third name:{{name}}',
  };
}])
.controller('DirectiveController', ['$scope', function($scope){
  $scope.name="mike";
}]);

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