Codehs 8.1.5 Manipulating 2d Arrays Here

Elara looked at the peaceful, glowing grid. It wasn’t a nebula. But maybe, she thought, it was its own kind of art.

// Example: Replacing all -1s with 0 if (arr[r][c] == -1) arr[r][c] = 0; Use code with caution. 3. Cumulative Operations (Summing) Codehs 8.1.5 Manipulating 2d Arrays

var array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]; array.splice(1, 1); // remove row at index 1 console.log(array); // output: [[1, 2, 3], [7, 8, 9]] Elara looked at the peaceful, glowing grid

function doubleArray(grid) for(let r = 0; r < grid.length; r++) for(let c = 0; c < grid[r].length; c++) grid[r][c] = grid[r][c] * 2; Use code with caution. Step-by-Step Breakdown of the Manipulation To successfully complete CodeHS 8.1.5, follow these steps: 1. Initialize the Grid Elara looked at the peaceful

Ensure you are accessing the correct variable. In CodeHS, you are often given an existing grid. 2. Set Up the Nested Loops