Comma separated number/function in parenthesis in JavaScript?
dot.js, javascript
Solution
The comma operator evaluates both and always returns the last. Much like you said.
You can read up on the comma operator: http://javascriptweblog.wordpress.com/2011/04/04/the-javascript-comma-operator/
Even though I have no idea the purpose of (0||eval)... (0,eval) is the equivalent and one less character.
Problem
I read a line from doT.js: ``` var global = (function(){ return this || (0||eval)('this'); }()); ``` After it was minified: ``` l=function(){return this||(0,eval)("this")}(); ``` So what is the `(0,eval)`, I mean what does the comma do? I played in Chrome's console, `(0,1)`, `(2,1)`, `(2,{})`, `2,1`, etc, it always returns the last one.