Snake: Will not ad cells to array with push. Why not?

[steinlav]

I am translating from Processing:
http://vestera.as/processing/?id=23

to p5.js:
https://editor.p5js.org/steinlav/sketches/1rkgu_AGI

Problem in p5.js line 57
Why is it not possible to ad object “head” to the array “body”?
I have stared at this for hours

function update() {
  // Puts the head in the array. Why does this not work?
  **body.push(head);**
  if (grow > 0) { 
    // Shall grow, Head is moving. Tail stays behind.
    grow--;  
  } else { 
    // Removing tail cell
    body.splice(0, 1); 
  }

[figraham]

It just looks like a small typo. I started by console.log(body) to see if the push was working. The body was growing so. It’s not displaying right. The for loop has a typo in it.

// on line 46
for (i = 0; i < body.lenght; i++) {
// should be change to
for (let i = 0; i < body.length; i++) {

This is one of the disadvantages of javascript where it won’t always tell you if a object key doesn’t exist.

[GoToLoop]

@figraham

This is one of the disadvantages of JS where it won’t always tell you if an object key doesn’t exist.

Strict mode - JavaScript | MDN

[steinlav]

Thank you!!