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Which data is stored in var and how its content is changed in JavaScript?
JavaScript variables are not typed but their values do have a type. The same variable can be assigned new values.
Example
<!DOCTYPE html> <html> <body> <script> var a; document.write(typeof a+"\r
"); a = true; document.write(typeof a+"\r
"); a = 5; document.write(typeof a+"\r
"); a = "web"; document.write(typeof a+"\r
"); </script> </body> </html>
Updated on: 13-Sep-2019
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