JavaScript Reference/Javascript Methods/parseInt
"parseInt()" Example
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<html> <body> <button onclick="alert(parseInt("12.34"));">Number</button> <button onclick="alert(parseInt("Hello"));">NaN</button> </body> </html>
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"parseInt()" Syntax, Parameters and Note
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Note: Converts the string to an integer. Returns an integer if value supplied is numeric or NaN if value supplied is not numeric.
Syntax:
parseInt(param1) Parameters:
param1 Required; the string to be evaluated. </source>