A JavaScript Crash Course in Kadoos institute

JavaScript Can Change HTML Content One of many JavaScript HTML methods is getElementById().

The example below "finds" an HTML element (with id="demo"), and changes the element content (innerHTML) to "Hello JavaScript":

document.getElementById("demo").innerHTML = "Hello JavaScript";

JavaScript Can Change HTML Attribute Values In this example JavaScript changes the value of the src (source) attribute of an tag

Changing the style of an HTML element, is a variant of changing an HTML attribute:

document.getElementById("demo").style.fontSize = "35px";

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