JavaScript Boolean method: valueOf()
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The valueOf() method (when applied to a JavaScript
Boolean
variable) returns the primitive value of the Boolean (i.e. itself).
It
has the following syntax (with no parameters):
boolean.valueOf()
EXAMPLE: [This feature does not appear to be supported by your browser]
HTML USED IN THIS EXAMPLE:
<!DOCTYPE html>
<html> <!-- Copyright (c) Nematrian Limited 2018 -->
<head>
<style>
table,th,tr,td {border: 1px solid black; border-collapse: collapse;}
</style>
</head>
<body>
<table>
<tr>
<th>Example</th>
<th>Resulting value of <code>x</code></th>
</tr>
<tr>
<td><code id="Example"></code></td>
<td><code id="Result"></code></td>
</tr>
</table>
<script>
var h = Boolean(2>1)
document.getElementById("Example").innerHTML =
'var h = Boolean(2>1);<br>' +
'var x = h.valueOf();';
document.getElementById("Result").innerHTML = h.valueOf();
</script>
</body>
</html>
|
FUNCTION THAT MAY ASSIST IN TESTING WHETHER FEATURE IS SUPPORTED:
function isSupportedJavaScriptMethodBooleanValueOf() {
var x = document.createElement("CANVAS"); var c = x.getContext("2d"); return !!c.alueOf;
} |
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