Common idiom to avoid IE throw: Error: 'console' is undefined

问题:

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

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

What's the common idiom to avoid this.

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

Well I'm not sure what to do.

回答1:

i usually make a wrapper function like so:

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

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 */ }     }; } 

回答2:

Paul Irish has a better wrapper for console.log().

http://paulirish.com/2009/log-a-lightweight-wrapper-for-consolelog/

This allows multiple arguments, and provides a history (for debugging) in case no console is there or (eg Firebug Lite) the console is created later.

文章来源: Common idiom to avoid IE throw: Error: 'console' is undefined