The code attempts to assign a value to a function result. The result of a function can be assigned to a variable, but it cannot be used as a variable. If you want to assign a new value to the function itself, omit the parentheses (the function call operator).

To correct this error

Do not use the value of a function call result as something you can assign to. You can assign the result of the function call to a variable, though.
В Copy Code
myVar = myFunction(42);
Alternatively, you can assign the function itself (and not its return value) to a variable.
В Copy Code
myFunction = new Function("return 42;");

To correct this error

See Also

Reference

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