Learn essential coding patterns to answer problems and prepare for tech companies' interviews.

Ace the JavaScript Coding Interview

This module teaches us the underlying patterns behind common coding interview questions. By learning these essential patterns, we'll be able to unpack and answer any problem the right way—just by assessing the problem statement. This approach was created by FAANG hiring managers to help us prepare for the typical rounds of interviews at major tech companies like Apple, Google, Meta, Microsoft, and Amazon.

By the end of this module, we'll have the skills we need to unlock even the most challenging questions, grok the coding interview, and level up our career with confidence.

Coding Interview Patterns

# Statement

You are given a string, `s`, and an array of strings, `wordDict`, representing a dictionary. Your task is to add spaces to `s` to break it up into a sequence of valid words from `wordDict`. We are required to return an array of all possible sequences of words (sentences). The order in which the sentences are listed is not significant. 

> **Note:** The same dictionary word may be reused multiple times in the segmentation.


**Constraints:**

- $1 \leq$ `s.length` $\leq 20$

- $1 \leq$ `wordDict.length` $\leq 1000$

- $1 \leq$ `wordDict[i].length` $\leq 10$

- `s` and `wordDict[i]` consist of only lowercase English letters.

- All the strings of `wordDict` are unique.

Word Break II

Statement