Some examples from this set of practice questions
1.
What is JavaScript?
Answer: JavaScript is a high-level, interpreted programming language primarily used for adding interactivity to web pages. It runs on the client-side and allows developers to create dynamic content and interactive features.
2.
What are the basic data types in JavaScript?
Answer: JavaScript has several basic data types, including Number, String, Boolean, Object, Array, null, and undefined.
3.
How do you declare a variable in JavaScript?
Answer: You can declare a variable in JavaScript using the var, let, or const keyword. For example: var myVariable = 10; let anotherVariable = \"Hello\"; const pi = 3.14;
4.
How do you write a comment in JavaScript?
Answer: In JavaScript, you can write a single-line comment using // or a multi-line comment using /* ... */. For example: // This is a single-line comment /* This is a multi-line comment */
5.
What are conditional statements in JavaScript?
Answer: Conditional statements in JavaScript are used to make decisions based on conditions. The main ones are if, else if, and else. For example: if (condition) { // Code to execute if the condition is true } else if (anotherCondition) { // Code to execute if the previous condition is false and this condition is true } else { // Code to execute if all conditions are false }
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