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Title: GitHub - psychoss/123-Essential-JavaScript-Interview-Question: JavaScript 123 interview Question, Interview Question In JavaScript, Front-end Interview Question, Advance JavaScript Interview Question · GitHub

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http://stackoverflow.com/questions/20822022/javascript-variable-definition-declaration	http://stackoverflow.com/questions/20822022/javascript-variable-definition-declaration
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http://stackoverflow.com/questions/2449254/what-is-the-instanceof-operator-in-javascript	http://stackoverflow.com/questions/2449254/what-is-the-instanceof-operator-in-javascript
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