Sign value of added plus in javascript

Question

What is the “+" effect in the following?

var result = jQuery.trim(this.html2val(this.getValueJelement()[0].innerHTML));
    result = +result.replace(/[^\d\.-]/g, '');

+5

jeromeyers May 17, '12 at 17:37

3 answers

It converts the operand to a number. In other words, this is basically the same as saying result = parseFloat(result).

+2

Elliot bonneville May 17 '12 at 17:38

+ais the fastest way to convert ato number.

+1

Engineer May 17 '12 at 17:44

jmar777 · Accepted Answer · 2012-05-17T17:38:21+0000

This is essentially a hidden way of forcing the right operand to a numerical value. For instance.

> +"42"
42