Learn JavaScript (Tutorial 7)
Presented by: Aakash Biswas
Duration: 12.00 minutes
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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.
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