If you are extensively working with the console in the chrome developer tools and the console in Firefox/firebug and you find the need to clear the console many times while you are testing your code, both Chrome and Firefox have a feature that lets you do that programmatically.
Chrome
clear()
Firefox
console.clear()
I feel that the Firefox version of the command makes more sense. I have absolutely no idea why the Chrome guys chose to do it differently.
If you are a mouse person, in chrome, you can use the context menu and select Clear Console. If you are using firefox instead, you can use the clear button on top of the firebug console. But I guess you know that already.
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