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JavaScript JavaScript and the DOM (Retiring) Traversing the DOM Getting All Children of a Node with children

Piotr Manczak
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Piotr Manczak
Front End Web Development Techdegree Graduate 29,363 Points
Posted by Piotr Manczak
.a{fill-rule:evenodd;}techdegree seal-36
Piotr Manczak
Front End Web Development Techdegree Graduate 29,363 Points

Is HTML Collection not an array but an object? When I log into console typeof(lis) it shows object not array.

Is HTML Collection not an array but an object? When I log into console typeof(lis) it shows object not array. Also I can not use forEach() on it, however for in loop works perfectly fine. If that is the case why can I use for loop to iterate over lis as well?

2 Answers

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

An HTMLCollection is what is known as an "array-like object", which is iterable and offers a few methods and properties for selecting items within it.

Another interesting aspect is that it is "live", meaning that it is updated whenever changes are made to the DOM.

For more details, see the MDN page on HTMLCollection.