避免 IE 抛出的常见习语:错误:'console' is undefined

问题描述

我已经安装了 firebug 并编写了所有这些日志语句.

I've installed firebug and I wrote all these log statements.

我已经在 IE 中测试了我的应用程序，当然我遇到了未定义"错误.

I've tested my app in IE and of course I've got "undefined" error.

避免这种情况的常用习语是什么.

What's the common idiom to avoid this.

我真的不想评论我文件中的所有 console.log 语句，也不想模拟它们.

I don't really feel like commenting all the console.log statements in my file nor to mock them.

嗯，我不知道该怎么办.

Well I'm not sure what to do.

推荐答案

我通常做一个这样的包装函数:

i usually make a wrapper function like so:

function log(obj) {
    if (window.console && console.log) console.log(obj);
}

或者你可以在你的脚本文件/元素的开头做这样的事情:

or you could do something like this at the beginning of your script file/element:

if (!window.console) { 
    window.console = {
        log: function(obj){ /* define own logging function here, or leave empty */ }
    };
}