AngularJs’s ng-repeat allows us to traverse arrays to generate Dom elements very conveniently, but improper use can also cause performance problems. Let me share with you how to use the ng-repeat directive to implement a drop-down box in the project.
1. Problem background
The options in the select drop-down box are assembled into a drop-down box. Here, the ng-repeat instruction is used to create
2. Implementation source code
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>AngularJS之下拉框（方式二）</title>
<script type="text/javascript" src="../js/angular.min.js" ></script>
<script>
var app = angular.module("secondApp",[]);
app.controller("secondCon",function($scope){
$scope.trees = ["松树","樟树","枫树","枣树","桃树"];
});
</script>
</head>
<body>
<div ng-app="secondApp" ng-controller="secondCon">
<select style="width: 200px;">
<option ng-repeat="tree in trees">{{tree}}</option>
</select>
</div>
</body>
</html>3. Problem description
ng-repeat instruction can repeat data
The above is the editor’s introduction to AngularJS using ng- The repeat command implements a drop-down box. I hope it will be helpful to everyone. If you have any questions, please leave me a message and the editor will reply to you in time. I would also like to thank you all for your support of the PHP Chinese website!
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