This JavaScript exception is not a function that occurs if someone trying to call a value from a function, but in reality, the value is not a function.
Message:
TypeError: Object doesn't support property or method {x} (Edge)
TypeError: "x" is not a function
Error Type:
TypeError
Cause of Error: There is an attempt to call a value from a function, but in reality, the value is not a function. Here the need is to provide a function, but that didn’t happen.
Example 1: In this example, the document.getElementByID is used as a function, which is not. So the error has occurred.
HTML
<!DOCTYPE html> <html> <head> <title>Type Error</title> </head> <body> <script> let x = document.getElementByID('GFG'); document.write(x); </script> </body> </html> |
Output(In Chrome console):
TypeError: document.getElementByID is not a function
Example 2: In this example, the brackets are used as multiply But they are like calling a function. So the error has occurred.
HTML
<!DOCTYPE html> <html> <head> <title>Type Error</title> </head> <body> <script> const x = 4(4 + 5); document.write(x); </script> </body> </html> |
Output(In Chrome console):
TypeError: 4 is not a function
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