Effect of x = +x in JavaScript
javascript
Solution
Perhaps I am reading this wrong but from the specs http://asmjs.org/spec/latest/#parameter-type-annotations
is that casting it as a double?
Problem
Going though the asm.js documentation I've observed this strange (to me at least, quite new to JS) snippet all over the sample code: ``` function test(x) { x = +x; // THIS ... return +(x*y); } ``` What is the purpose of the `+` on the first line?