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tevko/bitwise_indexof.js

Created January 15, 2016 17:13
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Bitwise Operator and indexOf on strings
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bitwise_indexof.js
// "Bitwise operators perform their operations on such binary representations, but they return standard JavaScript numerical values."
//It transforms -1 into 0, and 0 is false in javascript, so:
var someText = 'text';
!!~someText.indexOf('tex'); //sometext contains text - true
!~someText.indexOf('tex'); //sometext not contains text - false
~someText.indexOf('asd'); //sometext contains asd - false
~someText.indexOf('ext'); //sometext contains ext - true
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