Codehs 8.1.5 Manipulating 2d Arrays ((better)) May 2026

CodeHS 8.1.5: Manipulating 2D Arrays , you are tasked with fixing the final element (currently set to 0) in each sub-array of a 2D array. This exercise tests your ability to access specific indices and calculate values based on existing array properties like You must call a method (often named updateValue

Adding a new row to a 2D array can be done using the push() method. Codehs 8.1.5 Manipulating 2d Arrays

• Number of rows: matrix.length
• Number of columns in row 0: matrix[0].length

To update an element in a 2D array, you can simply assign a new value to the element using its row and column index. CodeHS 8

Here is how you would write the solution for a typical manipulation task: Number of rows: matrix

In CodeHS 8.1.5, you learned to: