Im trying to make a function that makes a 2d array but I have a syntax error here is the function
function asdf(col,row)
{
let arr = new Array(col);
let i = 0;
for (i < col; i++)
{
arr[i] = new Array(row);
}
return arr;
}
the error is at the ")" at the end of the for loop any ideas?
The error is due to a missing semi-colon in the for loop:
for (i < col; i++)
Change it to
for (;i < col; i++)
A better approach can be just to simply define the loop variable in the for loop like so:
for (let i = 0;i < col; i++)
The for statement creates a loop with 3 optional expressions:
for (expression 1; expression 2; expression 3) {
// code block to be executed
}
Expression 1 is executed (one time) before the execution of the code block.
Expression 2 defines the condition for executing the code block.
Expression 3 is executed (every time) after the code block has been executed.
There's a syntax error because you are missing Expression 1.