Ladybugs

function ladybugs(input) {
    let fieldSize = Number(input[0]);
    let ladybugsPositions = input[1].split(' ');
    let initialField = [];

    //initial field array
    for(let i = 0; i < fieldSize; i++) {
        initialField[i] = 0;
    }

    for(let i = 0; i < ladybugsPositions.length; i++) {
        let ladybugIndex = Number(ladybugsPositions[i]);

        for(let j = 0; j < fieldSize; j++) {
            if(j == ladybugIndex) {
                initialField[j] = 1;
            }
        }
    }

    //commands
    for(let i = 2; i < input.length; i++) {
        let command = input[i].split(' ');
        let ladybug = Number(command[0]);
        let direction = command[1];
        let path = Number(command[2]);

        if(initialField[ladybug] == 1) {
            initialField[ladybug] = 0;
            let destination = 0;

            if(direction == 'right') {
                destination = ladybug + path;

                while(initialField[destination] == 1) {
                    destination += path;
                }
            } else if(direction == 'left') {
                destination = ladybug - path;

                while(initialField[destination] == 1) {
                    destination -= path;
                }
            }

            if(initialField[destination] == 0) {
                initialField[destination] = 1;
            }
        }
    }

    console.log(initialField.join(' '));
}

ladybugs([ 5, '3',
'3 left 2',
'1 left -2']
);