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Challenge Iterate over Arrays with map

SaintPeter edited this page · 1 revision
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Using map is the best way to iterate through an array or object. Map uses a function to pretty much do whatever you want it to do. It will pass each value to the callback function.

//Use map to add three to each value in the array
var array = [1,2,3,4,5];

array = array.map(function(val){
  return val + 3;
});
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