Learn JavaScript (Tutorial 7)
Presented by: Aakash Biswas
Duration: 12.00 minutes
Watch Tutorial 1: • Learn JavaScript (Tutorial 1)
Watch Tutorial 2: • Learn JavaScript (Tutorial 2)
Watch Tutorial 3: • Learn JavaScript (Tutorial 3)
Watch Tutorial 4: • Learn JavaScript (Tutorial 4)
Watch Tutorial 5: • Learn JavaScript (Tutorial 5)
Watch Tutorial 6: • Learn JavaScript (Tutorial 6)
Functions
A function is a block of code designed to perform a particular task.
A function is defined with the function keyword, followed by a name, followed by parentheses.
Function names can contain letters, digits, underscores, and dollar signs.
The parentheses can have parameter separated by commas.
When a function reaches a return statement it will stop executing the block of code.
The return statement returns a value.
If the function was invoked from a statement, JavaScript will return to execute the code after the invoking statement.
Functions often compute a return value.
The return value is returned back to the caller.
