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javascript - 如何使用 Angular js 或 java 脚本将逗号分隔的字符串分解为单个索引数组

问题描述

我有一个像 15,16,17 这样的字符串值，我想使用 angular js 1.x 或 java script 将其转换为 ["15","16","17"]。请帮帮我

我的 Angular js 代码是

<!DOCTYPE html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<body>

<div ng-app="myApp" ng-controller="myCtrl">

Array items
<code style="display: block; padding: 8px;">{{selected | json}}</code>

</div>

<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
    $scope.selected = [];
    $scope.selected = ["15","16","17"];
    $scope.existvalues=15,16,17;
    //$scope.selected=$scope.existvalues;
    /*Instead of above static code i want  assign a comma separated string  dynamic value like 
     this  $scope.existvalues=15,16,17;
     How i  convert and assign $scope.existvalues to $scope.selected array like ["15","16","17"] 
    */
     
});
</script>

</body>
</html>

标签： javascriptangularjs

解决方案

用于split()将字符串转换为数组

var str = "15,16,17"
var strArr = str.split(',');
console.log(strArr); // gives ["15","16","17"];

或根据您的示例将其放入术语中

$scope.existvalues="15,16,17"; 
$scope.selected = $scope.existvalues.split(',');
console.log($scope.selected); // gives ["15","16","17"]

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