Possible to enable “strict mode” in FireBug and Chrome's console?

Question

With this page:

Answer 1

On Chrome go to "chrome://flags", then "Enable Experimental JavaScript". Relaunch.

Answer 2

If you are just testing a single function in the console, you can also just put 'use strict' as the first line in the function declaration.

Answer 3

Chrome: put 'use strict'; prefix in your code line (and/or shift+enter for multiline)

'use strict'; var foo = 2; delete foo;

Answer 4

The firebug console works by wrapping all the code in an "eval" call so the first statement in your script is no longer "use strict" - hence it is disabled. You could try wrapping your code in a function to enforce "use strict" for that particular function but the best solution I know of is to skip the console and test straight in the page itself.

Answer 5

use shift+enter to input 'use strict'

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