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JavaScript hacks explained

• Digit-Al 11y ago
  Clever tricks are all well and good until they bite you on the ass. Using the || to provide default parameters is great until you want to use booleans. Take the following code: function f(x) { x = x || true; ...} Guess what x will be if you call x(false). Guess which muggins made this mistake without thinking about it (ahem) :-) The moral of the story - don't get too complacent with clever tricks.