Basic Javascript (98/111) | Iterate Through an Array with a For Loop | freeCodeCamp

Published: 04 December 2020
on channel: Stral Tech

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Basic Javascript (98/111) | Iterate Through an Array with a For Loop | freeCodeCamp

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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.
Remember that arrays have zero-based indexing, which means the last index of the array is length - 1. Our condition for this loop is i arr.length, which stops the loop when i is equal to length. In this case the last iteration is i === 4 i.e. when i becomes equal to arr.length and outputs 6 to the console.
Declare and initialize a variable total to 0. Use a for loop to add the value of each element of the myArr array to total.

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