Created
December 10, 2012 09:52
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false == false // true | |
0 == false // true | |
-0 == false // true | |
'' == false //true | |
// converting to a Number will return 0 | |
// exemple: | |
+'' // return 0 | |
+false // return 0 | |
Number(false) // return 0 | |
+true // return 1 | |
typeof +'' // return 'number' | |
typeof '' // return 'string' | |
undefined == false // false | |
// undefined is not equal to false but... | |
var a; | |
a; // undefined | |
if(!a) console.log(true); // return true | |
null == false // false | |
// same for null | |
var a = null; | |
a; // null | |
if(!a) console.log(true); // return true | |
// Why?! | |
// because if statement convert undefined and null to false bool | |
null == undefined; // return true |
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