not equal sign not working in javascript

Question

I am using not equal sign to convert false to true but it is always giving false. I have tried it with 0 and 1 which is working fine. Also when I am changing value "False" to "true" then it is also working but problem is with "false" only.

<script type="text/javascript">
var test= "False";
alert(!test)
</script>

The string "False" is truthy. JavaScript isn't THAT loosely typed. — Tetsujin no Oni, Aug 07 '13 at 14:26

score 5 · Accepted Answer · answered Aug 07 '13 at 13:45

5

You are assigning the string "False", assign the boolean false

var test = false;
alert(!test);

answered Aug 07 '13 at 13:45

tymeJV

103,943
14
161
157

score 0 · Answer 2 · answered Aug 07 '13 at 13:46

0

If you put quotes around your boolean, you actually make a string of it. You should do it like this instead:

<script type="text/javascript">
    var test = false;
    alert(!test)
</script>

answered Aug 07 '13 at 13:46

ndequeker

7,932
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61
93

not equal sign not working in javascript

2 Answers2