Javascript Link Calling a Function
Displays Random Number in Console

Javascript Link Calling a Function
Displays Random Number in Console

 

This examples shows how to add a custom function. Placing code in custom functions allows you to reuse the same code without repeating it. The function in this case uses the built-in console object’s log method to display a random number in the web browser’s console panel. You need to open the web browser’s web developer tools to show the console panel. This example introduces how to call a function using the a element’s onClick attribute. This attribute’s value is valid Javascript code. Trying to place a lot of complicated Javascript code as the onClick attribute’s value is difficult to edit. The best practice is instead to just add the name of a function followed by the return statement with the false keyword as the expression. Also note that the href attribute’s is set to the hash symbol, # to disable the default browser action for the a element.