Welcome to this JavaScript course.
JavaScript is ubiquitous on the World Wide Web. You can use JavaScript to make your Web pages more interactive, so that they react to a viewer's actions, and to give your Web pages some special visual effects.
JavaScript allows you to add additional features that a static HTML page can't provide without some script code.
The JavaScript lessons of this course are free and a good start for beginners, they offer the necessary elements to learn the JavaScript programming language and working with JS code.
<input type="checkbox" name="a_name" value="value" checked="checked" />
#id { background:url("path_to_image.png"); background-size:contain; background-repeat:no-repeat; }
var rest8_7 = 8 % 7; alert(rest8_7);
$nr = ceil(3.5); echo $nr; // 4