angular.js - How to dynamically insert and delete elements in angularjs

Question

Just like this, I want to add an element<p class='main'></p> in html after pressing enter. How should I write the following if? There is another question. How does angularjs operate the DOM? I just started learning it and I don’t quite understand it.
var app = angular.module('myApp',[])

滿天的星座 · Answer

Data-driven model.
You need to change your thinking about operating dom.
What do you want to do after entering? You need an extra dom. Assuming that the previous dom number is 0, then if you press Enter, it will be +1.
Then it’s easy. You first define a variable. Whether the variable is initialized to 1 or 10,000 depends on your mood.





    
    
    JS Bin
    



    

        

            
        
        我是第{{i+1}}个main {{myDom}}

某草草 · Answer

You can put this

先写在页面上，写在todoCtrl in. Then add the ngShow syntax to the element to control the hiding and display of the element at any time:

$scope.showMain=false;

$scope.enterEvent = function(e) {
    var keycode = window.event?e.keyCode:e.which;
    if(keycode==13){
        $scope.showMain=true;
    }
}