Technologies Coding Problems Bookmarks Learning Paths Login

Technologies Coding Problems Bookmarks Learning Paths Login

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Questions

2 of 2

1Write a function flattenObject(obj) that flattens a deeply nested object into a single-level object, using dot notation for nested keys.

2Implement `customPromiseAll(promises)` that mimics `Promise.all()`.

javascript

Event Loop and Runtime

Concurrency and Threading

Bytecode and Parsing

Execution Context

String Operations

Array Operations

Call Apply Bind

Iterator and Generator

Garbage Collector

Functional Programming

Higher Order Functions

02 / 02

Implement `customPromiseAll(promises)` that mimics `Promise.all()`.

It should:

1
- Take an array of promises and return a new promise.
2
- Resolve when all promises resolve, returning an array of results.
3
- Reject immediately if any promise rejects.

javascript

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