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mandana mirzaii
Courses Plus Student 1,918 Pointsstuck on this question in js functions
Hi im not quite sure the syntax for this function. any help much appreciated, the question for the task is below
Around line 17, create a function named 'arrayCounter' that takes in a parameter which is an array. The function must return the length of an array passed in or 0 if a 'string', 'number' or 'undefined' value is passed in.
<!DOCTYPE html>
<html lang="en">
<head>
<title>JavaScript Foundations: Functions</title>
<style>
html {
background: #FAFAFA;
font-family: sans-serif;
}
</style>
</head>
<body>
<h1>JavaScript Foundations</h1>
<h2>Functions: Return Values</h2>
<script>
</script>
</body>
</html>
2 Answers
Jonathan Grieve
Treehouse Moderator 91,252 PointsHi Mandara,
It's a bit hard to guess without the javascript code you've already tried but
Around line 17, create a function named 'arrayCounter' that takes in a parameter which is an array. The function must return the length of an array passed in or 0 if a 'string', 'number' or 'undefined' value is passed in.
var numbers = ["One","Two", "Three"];
var arrayCounter = function(arr) {
if(typeOf arr =="array")
return arr.length();
} else {
return 0;
}
arrayCounter(numbers);
Robert Richey
Courses Plus Student 16,352 PointsHi Mandana,
In addition to Jonathan's answer, this thread may also be of help, showing several different ways of solving this challenge.
Best Regards