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Daniel-Hug/trim-array.js

Last active June 16, 2017 03:45
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JS function: trim undefined values from ends of array
Raw
trim-array.js
function trimArray(arr) {
for (var start = 0; start < arr.length && !(start in arr); start++);
for (var end = arr.length; end > start && !(end - 1 in arr); end--);
return arr.slice(start, end);
}
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