Q31. What are the examples of built-in higher order functions?
There are several built-in higher order functions exists on arrays, strings, DOM and promise methods in javascript. These higher order functions provides significant leve...
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Q32. What is the difference between map and forEach functions?
Both map and forEach functions are used to iterate over an arrays but there are some differences in their functionality. 1. **Returning values:** The `map` method returns...
Q33. What are the array mutation methods?
JavaScript array methods can be categorized into two groups: 1. Mutating methods: These are the methods that directly modify the original array. 1. Non-mutating methods: ...
Q34. What is structuredClone and how is it used for deep copying objects?
In JavaScript, `structuredClone()` is a built-in method used to create a **deep copy** of a value. It safely clones nested objects, arrays, Maps, Sets, Dates, TypedArrays...
Q35. What is the difference between for loop and forEach?
Both are used to iterate over arrays, but they differ in performance, flexibility, and purpose. The `for` loop is a core JavaScript statement that gives you full control ...
Q36. What is typed array in JavaScript?
Typed Arrays are specialized array-like objects that allow you to work with binary data in a structured and efficient manner. They come in different types, such as number...
Q37. According to JavaScript array, what comes first the chicken or egg?
According to the JavaScript array, "chicken" comes before "egg" because "chicken" is alphabetically sorted before "egg". ``` const arr = ["egg", "chicken"]; const sortedA...