Help with Slalom CS4 Javascript

[27narellano]

I did what it told me to do but the code is telling me that it cant read the properties of undefined.

// Use object literals to walk the safe path and collect the gems.
// You cannot use moveXY() on this level! Use move() to get around.
var gems = hero.findItems();

while (hero.pos.x < 20) {
	// move() takes objects with x and y properties, not just numbers.
	hero.move({'x': 20, 'y': 35});
}

while (hero.pos.x < 25) {
	// A gem's position is an object with x and y properties.
	var gem0 = gems[0];
	hero.move(gem0.pos);
}

// While your x is less than 30,
// Use an object to move to 30, 35.
while(hero.pos.x < 30){
    hero.moveXY(30, 35);
}
// While your x is less than 35,
// Move to the position of gems[1].
while(hero.pos.x < 35){
    hero.moveXY(gems[1].pos.x, gems[1].pos.x);
}
// Get to the last couple of gems yourself!
while(hero.pos.x < 25){
    hero.moveXY(gems[2].pos.x, gems[2].pos.y);
}

the message says this:

[27narellano]

Nvm i just fixed it. i didnt use the right code but here it is:

// Use object literals to walk the safe path and collect the gems.
// You cannot use moveXY() on this level! Use move() to get around.
var gems = hero.findItems();

while (hero.pos.x < 20) {
	// move() takes objects with x and y properties, not just numbers.
	hero.move({'x': 20, 'y': 35});
}

while (hero.pos.x < 25) {
	// A gem's position is an object with x and y properties.
	var gem0 = gems[0];
	hero.move(gem0.pos);
}

// While your x is less than 30,
// Use an object to move to 30, 35.
while(hero.pos.x < 30){
    hero.move({'x': 30, 'y': 35});
}
// While your x is less than 35,
// Move to the position of gems[1].
while(hero.pos.x < 35){
    hero.move({'x': gems[1].pos.x, 'y': gems[1].pos.y});
}
// Get to the last couple of gems yourself!
while(hero.pos.x < 40){
    hero.move({'x': 40, 'y': 35});
}

while(hero.pos.x < 45){
    hero.move({'x': gems[2].pos.x, 'y': gems[2].pos.y});
}

while(hero.pos.x < 50){
    hero.move({'x': 50, 'y': 35});
}

while(hero.pos.x < 55){
    hero.move({'x': gems[3].pos.x, 'y': gems[3].pos.y});
}

[A.Lee452]

Hey @27narellano! Welcome to the discourse. Thank you so much for formatting your code correctly
Good job fixing your code by yourself. However, you should probably delete the correct code since others might copy it and use it for themselves.

[27narellano]

Ok bud…

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