๐sparse array
let arr = [];
arr[1] = 1;
arr[3] = 2;
// โญ๏ธ same as: [ , 1, , 2 ]
// ^ ^ <---- holes โญ๏ธ Array(n) vs. Array(n).fill()
Last updated
let arr = [];
arr[1] = 1;
arr[3] = 2;
// โญ๏ธ same as: [ , 1, , 2 ]
// ^ ^ <---- holes โญ๏ธ Last updated