#TIL : View function source in developer tool console

If you are in console of developer tool and you want to know what the function does, you can view its source by:

1. call .toSource() of variable or function name in Firefox

Example :

>> function hello(name) { return "Hello " + name; }

>> hello.toSource();
<- "function hello(name) { return \"Hello \" + name; }"

2. click 'show function definition' in Chrome