The error message “argument z must be 2-dimensional” means that the input value assigned to the variable “z” should be a two-dimensional object or array.
If you are encountering this error, it suggests that you are trying to perform an operation that requires a 2D object or array, but your provided input is not meeting this requirement.
Example 1:
let z = [1, 2, 3]; // This is a 1D array
someFunction(z);
In the above example, the variable “z” is a one-dimensional array. If the function “someFunction” expects a 2D array as an argument, it will throw the “argument z must be 2-dimensional” error.
Example 2:
let z = {a: 1, b: 2}; // This is a normal object, not a 2D structure
someFunction(z);
In this example, the variable “z” is a regular object. If the function “someFunction” expects a 2D structure like an array of arrays or matrix, passing an object will result in the “argument z must be 2-dimensional” error.