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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Iterating through an Array

Julien Arseneau
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Julien Arseneau
Full Stack JavaScript Techdegree Student 5,200 Points
Posted by Julien Arseneau
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Julien Arseneau
Full Stack JavaScript Techdegree Student 5,200 Points

I don't understand why my loop never ends.

I don't understand why my loop never ends.

script.js 
var temperatures = [100,90,99,80,70,65,30,10];
for (i = 0 ; i < temperatures.length ; i =+ 1) 
{console.log(temperatures[i])}
index.html 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

2 Answers

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

The final clause of the "for" determines what happens between the repeats, and your code has "i =+ 1". This causes the value of "i" to be continually re-set to 1 (+1) each time, so it will never exceed the length of list and meet the condition necessary to end.

You probably intended to write "i += 1" instead, which would raise the value of "i" each time.