javascript - 如何在angular js中 trim 字符串中的字符

Question

我想 trim 字符串中的字符。我的输出字符串是“Val:980”。我需要 trim 前 4 个字母，这样我只会得到 980。

<script>
    var app = angular.module('myApp', []);
    app.controller('myCtrl', function($scope, $http) {
        $http.get('https://example.com', {
            headers: {
                'Authorization': 'Basic fakjle=='
            }
        }).then(function(response) {
            $scope.names = response.data;
            $scope.decodedFrame = atob($scope.names.dataFrame) //Val:980               });
        });
    });
</script>

<div ng-app="myApp" ng-controller="myCtrl">
    <table>
        <tr>
            <td> {{decodedFrame} </td>
        </tr>
    </table>
</div>

Answer 1

尝试:

var value = $scope.decodedFrame.split(":")[1]; // actually safer to use split
value = (parseFloat(value) * 0.23) / 162;

并查看(更多字符串方法): https://www.w3schools.com/js/js_string_methods.asp