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nola/null.js

Created November 26, 2013 01:33
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Null, Undefined, Empty Checks Shorthand When creating new variables sometimes you want to check if the variable your referencing for it’s value isn’t null or undefined. I would say this is a very common check for JavaScript coders.
Raw
null.js
if (variable1 !== null || variable1 !== undefined || variable1 !== '') {
var variable2 = variable1;
}
//short hand
var variable2 = variable1 || '';
@jothewhite90
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jothewhite90 commented Mar 3, 2014

Hi, i tried this example, but both if-conditions throws an ReferenceError: "variable1 is not defined".

Does this still works?

@shengoo
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shengoo commented Apr 24, 2014

you should declare variable1 first

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