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JavaScript JavaScript Arrays Loop Through Arrays Loop Through an Array

Posted by Hanwen Zhang
Hanwen Zhang
20,084 Points

Do we only name the parameter as "arr"? How do the loop know that "arr" is referred to the array we assigned to ?

please help

1 Answer

Steven Abaco
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Steven Abaco
Full Stack JavaScript Techdegree Graduate 17,883 Points
Steven Abaco
.a{fill-rule:evenodd;}techdegree seal-36
Steven Abaco
Full Stack JavaScript Techdegree Graduate 17,883 Points

You can use whatever parameter name you want. It does not need to be "arr". He used "arr' just as an abbreviation for "array" since, in this example, we are passing in an array. The argument you pass in when calling the function (In this case "Playlist" will be assigned the parameter name "arr" just for use in this function). You then can use the assigned parameter name in the function code block to call the array argument passed into the function.

Hope this helps.