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李立峰
李立峰
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Everything posted by 李立峰
What does ! mean?
李立峰
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JavaScript
What does !! in javascript mean? I cannot find it in http://www.w3schools.com/js/js_operators.asp And also, where can I look up these operators? You know, typing operators (like !!) in Google normally returns nothing.. Thanks!
August 20, 2015
5 replies
javascript
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