return validate - JavaScript

Question

<form onsubmit="return validate()" method="post">
Number: <input type="text" name="num1" id="num1" />
<br />
Repeat: <input type="text" name="num2" id="num2" />
<br />
<input type="submit" value="Submit" />
</form>

Why are we using "return" here and why not just "validate()"?

Answer 1

You apply for a job in a company
You submit your details to the company
The company receives and do the certain validation and THEN RETURN YOU WHETHER You ARE SELECTED OR NOT (in this case validate())