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danawoodman/examples.js

Created March 11, 2019 20:24
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Javascript array examples
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examples.js
// Lots of examples here:
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
const arr = [ 1, 2, 3 ]
// first item in array:
arr[0]
// last item:
arr[2]
// Number of items in array:
arr.length // => 3
// Add item to end of array:
arr.push(4) // => [ 1, 2, 3, 4]
// Add item to start of array
arr.unshift(0) // => [ 0, 1, 2, 3, 4 ]
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