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What is return script?
The return statement stops the execution of a function and returns a value from that function.
What is return in JavaScript?
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.
How do I return a shell script?
A function may return a value in one of four different ways:
- Change the state of a variable or variables.
- Use the exit command to end the shell script.
- Use the return command to end the function, and return the supplied value to the calling section of the shell script.
What is return Lua?
A return statement returns occasional results from a function or simply finishes a function. There is an implicit return at the end of any function, so you do not need to use one if your function ends naturally, without returning any value.
What is return end?
return ends the function, causing the script to go back to where the function was called originally. This allows a returned value of one function to be used inside a second function.
Do JavaScript functions have to return a value?
So to recap: No, a JS function needn’t return anything as far as your code goes. But as far as the JS engines are concerned: a function always returns something, be it explicitly via a return statement, or implicitly. If a function returns implicitly, its return value will always be undefined.
What does JavaScript return if no return statement?
A function without a return statement will return a default value. In the case of a constructor called with the new keyword, the default value is the value of its this parameter. For all other functions, the default return value is undefined .
Which command is used to list all the submitted background process?
ps command
You can use the ps command to list all background process in Linux.
What does return do in loop?
The return statement is useful because it saves time and makes the program run faster by returning the output of method without executing unnecessary code and loops. It is good practice to always have a return statement after the for/while loop in case the return statement inside the for/while loop is never executed.
What does end Do in Lua?
| do end(1) | block (grouping statements, especially when statements are not expressions) |
|---|---|
| — | commenting (until end of line) |
| < > <= >= | comparison |
| min / max | comparison (min / max (binary or more)) |
| == ~= | equality / inequality (shallow) |