Why is it that when I'm returning, what I think is, a boolean variable from a javascript function, it is detected in the calling function as a string, but if I return a boolean literal, the calling function detects it as a boolean?
So, for example:
$( document ).ready(function(){
$('#result').text(typeof validate());
$('#result2').text(typeof validate2());
});
function validate(){
status = true;
status = false;
return status;
}
function validate2(){
return true;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>Hello</p>
<div id="result"></div>
<div id="result2"></div>
You don't declare the status
status variable.
Therefore, the global one (window.status
) is overwritten.
However, the HTML 5 spec defines that property as a DOMString:
interface Window : EventTarget {
attribute DOMString status;
};
Therefore, it has a setter (either exposed or internal) which stores the stringified value.
To fix it, just declare your local variable using the var
statement.
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