Q1. How do slices differ from arrays in Go?
An array has a fixed length that is part of its type: `[4]int` and `[5]int` are different types, and copying an array copies all elements. A slice is a small descriptor w...
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Q2. How does binary search work and what are its pitfalls?
Binary search finds a target in a sorted array by halving the search range each step, giving O(log n). ```python def binary_search(nums, target): lo, hi = 0, len(nums) - ...
Q3. Why does mutating arrays or objects sometimes not update a Svelte 3/4 component?
In Svelte 3 and 4 reactivity is triggered by assignment to the variable the compiler tracks. Mutating an array or object in place does not notify the compiler because no ...
Q4. How would you find the K largest elements in an array?
Options and trade-offs: 1. Sort then slice: O(n log n) time, simplest, fine for small n. 2. Min-heap of size k: O(n log k) time, O(k) space. Preferred when k is small rel...
Q5. What is the difference between slice and splice?
Here are the key differences between `slice()` and `splice()` methods in JavaScript arrays: | `slice()` | `splice()` | | -------------------------------------------------...
Q6. What is the "readonly" modifier in TypeScript, and how does it affect properties and arrays?
The "readonly" modifier in TypeScript is used to make properties or array elements read-only, meaning they cannot be modified once initialized. It provides a way to enfor...
Q7. Can you erase the values of array elements in TypeScript?
In TypeScript, we cannot directly erase or remove values from individual array elements. Once a value is assigned to an element in an array, it remains in that position u...
Q8. What are the syntax rules of JSON?
Below are the list of syntax rules of JSON 1. The data is in name/value pairs 2. The data is separated by commas 3. Curly braces hold objects 4. Square brackets hold arra...
Q9. How do you define JSON arrays?
JSON arrays are written inside square brackets and arrays contain javascript objects. For example, the JSON array of users would be as below, ```javascript "users":[ {"fi...
Q10. What is the purpose of the freeze method?
Below are the main benefits of using freeze method, 1. It is used for freezing objects and arrays. 2. It is used to make an object immutable.