Many times you would like to place a button on your webpage to print the content of that webpage via an actual printer.Javascript helps you to implement this functionality using the print function of window object.

NOTE::
The javascript print function prints the current webpage when executed.You can call this function in various ways.In video tutorial below we called it directly using on click event.

Watch tutorial

Method 1

This first method we use what they call inline javascript. We place an onclick() event inside the opening button tag.See the example below;

//using inline javascript
<button onclick="window.print()">Print</button>

Method 2

In this second method, we assign an id to the print button which Later on target using a popular javascript method called getElementById().

//Add an id to the button
<button id="print">Print</button>

Still under method 2, let's target that button using javascript.You can either use an internal or external javascript file.So place this code below in your js file you will create.

//Create variable(printBtn)
//Target the element with id = print
let printBtn = document.getElementById('print');

//use the variable to attach an event(click) to the button
printBtn.addEventListener('click',function(){
    window.print();
});

Let's say you don't want some elements to be shown on print,you can use CSS to change the appearance of your web page when it's printed on a paper.The example below hides the print button when printed on the paper.

CSS Printing - @media Rule

We select the button by targeting it's id which is print for this case.

//css media print rule
//Hide button with the id of print
@media print{
    
    #print{
        display:none;
    }
}

Example

In this example below i used the print function directly on the button using the inline onclick event.

That's it for now, Let's do code pal.