Multidementional array declaration

Question

I'm trying to set 100 values in a multidementional array to 1 (10x10) but im getting the error

TypeError: Cannot set property '0' of undefined

How can I fix this?

var unsolvedArray = [[]];
for (let i = 0; i < width; i++) {
 for (let j = 0; j < width; j++) {
 unsolvedArray[i][j] = 1;
 }
}
console.log(unsolvedArray)```

• Tushar Shahi: unsolvedArray[0][1] or unsolvedArray[1][0] will be undefined in your case. Same goes for further indices. Try to use .push().

Answer 1

unsolvedArray[0][1] or unsolvedArray[1][0] will be undefined in your case. Same goes for further indices. Try to use .push().

Using your own code:

var unsolvedArray = [];
for (let i = 0; i < width; i++) {
unsolvedArray.push([]); //This is adding the empty array, otherwise unsovledArray[0] will cause error.
 for (let j = 0; j < width; j++) {
 unsolvedArray[i].push(1); //Same logic, unsolvedArray[0][0] will cause error
 }
}