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by broquaint
5632 days ago
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The behaviour is due to the fact that variables in JavaScript are scoped to the function, although as that code is in the global scope and lacks a var declaration it will live under the global object (window in this case). So in that example each closure captures the same variable hence 4 being produced within each alert(). For more info see: https://developer.mozilla.org/en/Core_JavaScript_1.5_Guide/C... |
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