A function in JavaScript is a type of variable that cannot be reused.

A function in JavaScript is a reusable block of code that can take inputs, execute logic, and return a value.

A function in JavaScript is a single line of code that performs a task.

A function in JavaScript is a method that only returns a value without taking inputs.

Function scope restricts variable access to the function, while block scope restricts access to the block.

Block scope allows access to variables outside the block.

Function scope allows access to all variables globally.

Function scope is only applicable to loops and conditionals.

Avoid using any CSS styles.

Use only fixed pixel sizes for layout.

Implement JavaScript for all layout changes.

Use CSS media queries, flexible layouts, and scalable images.

getElementsByTagName

getElementsByClassName

getElementById

querySelector

document.getElementById('elementId').innerHTML = 'New Text';

document.getElementById('elementId').setText('New Text');

document.querySelector('#elementId').text = 'New Text';

document.getElementById('elementId').textContent = 'New Text';

To add animations to elements on a web page.

To define the color of text on a web page.

To specify the font size of elements.

To control the layout and rendering of elements on a web page.

Use CSS: .container { display: block; }

Use CSS: .container { display: inline; }

Use CSS: .container { display: grid; grid-template-columns: 1fr 1fr; }

Use CSS: .container { display: flex; }

The 'this' keyword is a special function that executes code in JavaScript.

The 'this' keyword in JavaScript functions signifies the context of execution, determining the value it refers to based on how the function is invoked.

The 'this' keyword always refers to the global object in JavaScript.

The 'this' keyword is used to declare variables in JavaScript functions.

button.onClick(function() { /* your code here */ });

button.addEventListener('click', function() { /* your code here */ });

button.attachEvent('onclick', function() { /* your code here */ });

button.addEvent('click', function() { /* your code here */ });