Javascript
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  1. How to hide/show HTML elements in JavaScript?

  2. What is the Boolean value of undefined in JavaScript?

  3. Is it possible to convert a number into other base forms using toString() method in JavaScript?

  4. Why it is better not to create numbers as objects in JavaScript?

  5. What is the use of Atomics.store() method in JavaScript?

  6. How many ways can a property of a JavaScript object be accessed?

  7. How to check whether an array is a true array in JavaScript?

  8. What is the difference between instanceof() and Array.isArray() methods in JavaScript?

  9. How to access nested json objects in JavaScript?

  10. How to modify properties of a nested object in JavaScript?

  11. How to delete a property of an object in JavaScript?

  12. How to convert a string in to date object in JavaScript?

  13. What is the main difference between Object.freeze() and const in JavaScript?

  14. Is it possible to make a nested object immutable using Object.freeze() in JavaScript?

  15. How to remove non-word characters in JavaScript?

  16. How to decode an encoded string in JavaScript?

  17. How to parse an URL in JavaScript?

  18. How to add two strings with a space in first string in JavaScript?

  19. How important is backslash in breaking a string in JavaScript?

  20. What is the use of Object.is() method in JavaScript?
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