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Discussion on: 9 Extremely Powerful JavaScript Hacks

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Stephen Irving

I also wanted to point out that #7 is especially useful when you are using ternary expressions, as you cannot chain an if statement within a big ternary, but you can using the && operator. A simple example would be using a ternary to write an if/else-if (rather than a basic if/else):

  ? truthyFunction()
  : condition2 && falsyFunction()

The corollary to this tip is using the || operator to basically say "If this is false, do the following":

condition || falsyFunction();