IT4T Solutions Front end Developer Interview Questions and Answers for Experienced

Q1. Question on Javascript and HTML and css
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Q2. Tell about conts, let,var
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const, let, and var are used to declare variables in JavaScript.
• const is used to declare variables that cannot be reassigned.

• let is used to declare variables that can be reassigned.

• var is the old way of declaring variables, with function scope.
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Q3. What is dispaly property in html
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The display property in HTML specifies the type of rendering box used for an element.
• It determines how an element is displayed on the webpage

• Common values include 'block', 'inline', 'inline-block', 'none', etc.

• It can be used to control the layout and positioning of elements on the page
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Q4. Pseudo element in css
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Pseudo elements in CSS are used to style specific parts of an element, like the first letter or line.
• Pseudo elements are denoted by :: before the element name, like ::before or ::after.

• They can be used to add decorative elements, like inserting content before or after an element.

• Common pseudo elements include ::first-line, ::first-letter, and ::selection.
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Q5. Primitive and non primitive data typesin javascript
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JavaScript has two main categories of data types: primitive and non-primitive, each serving different purposes in programming.
• Primitive data types include: string, number, boolean, null, undefined, and symbol.

• Example of a string: 'Hello, World!'

• Example of a number: 42 or 3.14

• Non-primitive data types include: objects, arrays, and functions.

• Example of an object: { name: 'Alice', age: 25 }

• Example of an array: [1, 2, 3, 4,...read more
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