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bluurn/queue.js

Last active January 30, 2019 08:51
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JS: Queue Implementation
Raw
queue.js
class Queue {
constructor() {
this.items = [];
}
enqueue(obj) {
this.items.push(obj);
}
dequeue() {
return this.items.shift();
}
isEmpty() {
return this.items.length === 0;
}
}
var queue = new Queue();
console.assert(queue._items.length == 0)
queue.enqueue('foo');
queue.enqueue('bar');
queue.enqueue('baz');
console.assert(queue._items.every((v,i) =>
v === ['foo', 'bar', 'baz'][i]
))
queue.dequeue();
console.assert(queue._items.every((v,i) =>
v === ['bar', 'baz'][i]
));
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