Question

我有一个单独的字符串值，如15,16,17，我想将其转换为[＆＃34; 15＆＃34;，＆＃34; 16＆＃34;，＆＃34; 17＆＃34;]使用angular js 1.x或java script.Please帮助我

我的Angular js代码是

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<!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>

＆＃13;

Answer 1

使用split()将字符串转换为数组

＆＃13;

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

＆＃13;

或根据您的示例将其加入

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

Answer 2

对字符串使用Split方法，它会根据您要求拆分的字符串拆分字符串（＆＃34;在,拆分＆＃34;）并将答案作为数组返回

＆＃13;

str =  "15,16,17"
strAsArray = str.split(",")
console.log(strAsArray)

＆＃13;

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

2 个答案: