JavaScript: Calculate the product of values in an array
JavaScript Math: Exercise-18 with Solution
Write a JavaScript function to calculate the product of values in an array.
Test Data:
console.log(product([1,2,3]));
console.log(product([100,-200,3]));
console.log(product([1,2,'a',3]));
Output:
6
-60000
6
Pictorial Presentation:
Sample Solution:-
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Product of values in an array</title>
</head>
<body></body>
</html>
JavaScript Code:
function product(input){
if (toString.call(input) !== "[object Array]")
return false;
var total = 1;
for(var i=0;i<input.length;i++){
if(isNaN(input[i])){
continue;
}
total *= Number(input[i]);
}
return total;
}
console.log(product([1,2,3]));
console.log(product([100,-200,3]));
console.log(product([1,2,'a',3]));
Sample Output:
6 -60000 6
Flowchart:

Live Demo:
See the Pen javascript-math-exercise-18 by w3resource (@w3resource) on CodePen.
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Previous: Write a JavaScript function to calculate the sum of values in an array.
Next: Create a Pythagorean function in JavaScript
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