AngularJS app中的$ timeout未定义错误 [英] $timeout not defined error in AngularJS app

问题描述

我有以下代码：

app.factory('Position', ['$timeout', function() {

    var position = {
        latitude: 44,
        longitude: 26
    };

    console.log("Timeout started");

    $timeout(function() {
        position.latitude += 15;
        position.longitude += 15;
    }, 2000);

    return position;
}]);

我得到 $ timeout未定义 in Javascript控制台。我没有正确地注入服务的依赖吗？

And I get $timeout not defined in Javascript console. Am I not injecting the dependency of the service correctly ?

推荐答案

你没有注入 $ timeout 。它应该如下。

You did not inject $timeout. It should be as follows.

app.factory('Position', ['$timeout', function($timeout) {
    ...
}]);

这种声明可确保在JavaScript代码缩小时正确识别服务。有关如何帮助缩小的更多信息，请参阅关于缩小的注意事项和声明AngularJS模块以进行缩小

Declaration this way ensures that services are correctly identified when your JavaScript code gets minified. For further information on how this helps minification, see A Note on Minification and Declaring AngularJS Modules For Minification

如果缩小不在您的计划中（例如快速测试），您可以简单地使用

If minification is not in your plans (e.g for quick test), you can simply go with

app.factory('Position', function($timeout) {
    ...
});

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