Combine Arrays

L1 Easy Arrays & Hashing

Concept

Concatenation appends one array after another. It is the simplest way to merge two sequences when order matters.

Return a single array formed by all of a followed by all of b.

Examples

▸ a = [1, 2], b = [3, 4]

→ [1, 2, 3, 4]

▸ a = [], b = [1]

→ [1]

▸ a = [1, 2], b = []

→ [1, 2]

Progressive Hints

Hint 1 · Nudge

One array after the other, order preserved.

Hint 2 · Plan

Create a new array, copy all of a into it, then append every element of b. Return the result.

Hint 3 · Approach

result = copy of a. Append every element of b. Return result.

Output

// Run your code to see the output here.