Write Reusable Code with Function in javascript |Javascript Full Course |#javascript | #Revildo_cod

Write Reusable Code with Function in javascript | Javascript Full Course |#javascript | #Revildo_code




In JavaScript, we can divide up our code into reusable parts called functions . You can call or invoke this function by using its name followed by parentheses, like this: functionName(); Each time the function is called it will print out the message Hello World on the dev console




JavaScript supports user-defined functions, which is highly advantageous for developing a library of reusable code. You can place code you think you might reuse into one or more functions and save those functions in a text file for future reference.




Another essential concept in coding is functions, which allow you to store a piece of code that does a single task inside a defined block, and then call that code whenever you need it using a single short command - rather than having to type out the same code multiple times.



function is a group of reusable code which can be called anywhere in your program. This eliminates the need of writing the same code again and again. It helps programmers in writing modular code



JavaScript function is defined with the function keyword, followed by a name, followed by parentheses (). Function names can contain letters, digits, underscores, and dollar signs (same rules as variables). The parentheses may include parameter names separated by commas: (parameter1, parameter2, ...)


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