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Avoid telling people about techniques that are discouraged anyway
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@ -252,15 +252,9 @@ i // = 5 - not undefined as you'd expect in a block-scoped language
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// in a web browser is always 'window'. The global object may have a
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// different name in non-browser environments such as Node.js.
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window.permanent = 10
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// Or, as previously mentioned, if you leave the var keyword off, a
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// global variable will be created when you assign it a value. However,
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// this behavior is frowned upon, and in fact is disallowed in "strict
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// mode".
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permanent2 = 15
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})()
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temporary // raises ReferenceError
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permanent // = 10
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permanent2 // = 15 <-- the accidental global variable
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// One of JavaScript's most powerful features is closures. If a function is
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// defined inside another function, the inner function has access to all the
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