What does return 0 and return 1 means?

return 0 in the main function means that the program executed successfully. return 1 in the main function means that the program does not execute successfully and there is some error. In user-defined function. return 0 means that the user-defined function is returning false.

What does return 1 do in JavaScript?

-1 means the first goes before the second, 1 means it goes after, and 0 means they’re equivalent. The sort function uses the comparisons in the function you pass it to sort the function. For instance, if you wanted to sort in reverse order, you could make line 3 return 1; and line 5 return -1 .

What does only return mean in JavaScript?

The return statement in Javascript terminates a function. This code basically says that if ! function1() (the opposite of function1() ‘s return value) is true or truthy, then just stop executing the funciton. Which is to say, terminate this function immediately.

How does return work in JavaScript?

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.

What is return in java with example?

The return keyword finished the execution of a method, and can be used to return a value from a method.

What is return keyword in java?

In Java, return is a reserved keyword i.e, we can’t use it as an identifier. It is used to exit from a method, with or without a value.

Why do we use return 1 in java?

indexOf(int pos) – Returns the index within this string of the first occurrence of the specified character or -1 if the character does not occur. Your method has no return type, Provide a return type of int in your method. And return -1 means nothing in java, you are just returning a int value, thats it.