从 executescript 函数访问变量

Question

我希望在测试期间使用 browser.executescript 动态设置一些数据。类似于：

var x;
browser.executeScript(function () {
  var something = x;
});

但是 x 似乎超出了运行的函数范围。有没有办法让我传递将在内部范围内的参数？

非常感谢任何帮助 C

Answer 1

传递里面的参数arguments:

Any arguments provided in addition to the script will be included as script arguments and may be referenced using the arguments object. Arguments may be a boolean, number, string, or webdriver.WebElement. Arrays and objects may also be used as script arguments as long as each item adheres to the types previously mentioned.

var x;
browser.executeScript(function (arguments) {
  var something = arguments[0];
}, x);

Answer 2

除了@alecxe 的回答之外，如果您想要更易读的代码，并且可以支持 es6，这似乎是一个不错的选择。更多信息：https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment

var my, params, go, here;
browser.executeScript(function ([my, params, go, here]) {
  var something = here;
}, [my, params, go, here]);

从 executescript 函数访问变量

accessing variables from executescript function

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