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Write a function that takes an array of numbers and returns a new array with only the prime numbers.
Q1
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Given an array of objects representing students with name and score, write a function to return the student with the highest score.
Q2
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Create a webpage with a button. When clicked, the button should toggle the visibility of a paragraph using DOM methods.
Q3
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Write a JavaScript program using an object to model a car with methods to start, stop, and display its status.
Q4
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Write a function that takes a sentence and returns the word with the maximum length.
Q5
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Convert a function that filters out even numbers from an array into an arrow function with concise syntax.
Q6
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Write a JavaScript program to flatten a nested array (e.g., [1, [2, 3], [4, [5]]] => [1, 2, 3, 4, 5]).
Q7
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Create a form with email input and submit button. Validate using JavaScript DOM to ensure a valid email format.
Q8
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Write a function that merges two arrays and removes duplicates without using built-in Set.
Q9
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Create a nested object to represent a company with departments and employees. Write a function to list all employee names.
Q10