When a return statement is used in a function body, the execution of the function is stopped. If specified, a given value is returned to the function caller. For example, the following function returns the square of its argument, x , where x is a number. If the value is omitted, undefined is returned instead.
Explanation: The return stops the execution of the function when it is encountered within the function. It returns the value to the statement where the function is called.
The return statement stops the execution of a function and returns a value.
The return statement is used to return a particular value from the function to the function caller. The function will stop executing when the return statement is called. The return statement should be the last statement in a function because the code after the return statement will be unreachable.
What is it called when a function returns a function?
In mathematics and computer science, a higher-order function is a function that does at least one of the following: takes one or more functions as arguments (i.e. a procedural parameter, which is a parameter of a procedure that is itself a procedure), returns a function as its result.
What is the purpose of return statement in a function Mcq?
The return statement causes the function to stop executing and to return the value of its expression (if any) to the caller.
undefined is a property of the global object. … A variable that has not been assigned a value is of type undefined . A method or statement also returns undefined if the variable that is being evaluated does not have an assigned value. A function returns undefined if a value was not returned .
“Blank return” statements can be used to transfer the control back to the calling function (or stop executing a function for some reason – ex: validations etc). In most cases I use blank return statement is when I’m doing some kind of a validation.