JavaScript抑制特定错误 [英] JavaScript suppress a specific error

问题描述

我的JavaScript文件中包含以下行，这会在控制台上创建错误消息：

I have the following line in my JavaScript file, which creates an error message on the console:

myObject.width = 315;

我想在控制台上隐藏此错误消息。我的意思是，这行代码将运行，它将给出错误，但不会在控制台日志上显示。

I want to hide this error message on the console. I mean that, this line of code will run, it will give error, but won't display it on the console log.

我读到的是 window.onerror ，但是没有用。据我了解，这会禁用页面上的所有错误，但是我只想禁用我行的错误。我试过将它放到右边，但是它也不起作用：

I read about window.onerror, but it did not work. As I understand, this disables all the errors on a page, however I want to disable the errors of only my line. I tried putting it right after, but it didn't work either:

myObject.width = 315;
window.onerror = function(){
       return true;
    }

有没有解决方法？谢谢。

Is there any workaround for this? Thanks.

推荐答案

通常来说，这不需要产生错误。您遇到什么错误？那myObject没有定义？如果是这样，只需添加防护措施并检查其是否已定义。例如：

Generally speaking this shouldn't need to yield an error. What's the error you're getting? That myObject isn't defined? If so, just add a safeguard and check if it's defined. Such as:

if (myObject) {
    myObject.width = 315
}

也就是说，您可以通过将其包装在尝试捕获

That said, you can surpress it by wrapping it in a try-catch

try {
    myObject.width = 315;
}
catch(err) {
    // do nothing
}

要查看正在发生的情况，请尝试运行以下代码，并在删除 var myObject = {} 行时查看正在发生的情况。

To see what's happening, try running the following code and see what's happening when you're removing the var myObject = {} line.

var myObject = {}

try {
    myObject.width = 315;
} catch(err) {
    console.log('error');
}

console.log(myObject)

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