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Challenge Iterate Through An Array With A For Loop
Quincy Larson edited this page Aug 20, 2016
·
1 revision
A common task in Javascript is to iterate through the contents of an array. One way to do that is with a for
loop. This code will output each element of the array arr
to the console:
var arr = [10,9,8,7,6];
for (var i=0; i < arr.length; i++) {
console.log(arr[i]);
}
Remember that Arrays have zero-based numbering, which means the last index of the array is length - 1. Our condition
for this loop is i < arr.length, which stops when i is at length - 1.
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JS Concepts
JS Language Reference
- arguments
- Array.prototype.filter
- Array.prototype.indexOf
- Array.prototype.map
- Array.prototype.pop
- Array.prototype.push
- Array.prototype.shift
- Array.prototype.slice
- Array.prototype.some
- Array.prototype.toString
- Boolean
- for loop
- for..in loop
- for..of loop
- String.prototype.split
- String.prototype.toLowerCase
- String.prototype.toUpperCase
- undefined
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