The call stack:
Array with two methods: first in last out. push() pop() peak() //looks at the first one. Callback queue first in, first out. runs by adding them to the call stack basically an array, with two special methods: enqueue (unshift()) dequeue (shift()) Hoisting variables is done to make sure everything is declared before adding to the call stack. this[this.length++] = value //increments after evaluation this[++this.length} = value //increments before evaluation
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