WTF is the DOM?

Select an HTML Element with document.querySelector

Select a DOM Element with document.getElementById

Add a Node to Your HTML with document.appendChild

Introduction to Client Side Web APIs

You can use `document.querySelector` to fetch elements from your HTML document.

In this lesson, we pass an Id to `querySelector` indicated with a `#`. 

`document.querySelector('#movie-2')`.

`querySelector` will return the first element that it matched. 

https://app.egghead.io/api/v1/lessons/javascript-select-an-html-element-with-document-queryselector/subtitles

Instructor: [0:00] Here we have an HTML page that has an unordered list with two list items. If we wanted to get access to this second list item, we can use this ID, movie2, to query the DOM and retrieve it.

[0:16] We're going to add a script tag at the bottom of the page. We're going to name it const knivesOut. We can get this list item element by querying document.querySelector. We use the # to indicate that we're querying by ID, and movie2.

[0:43] Now that we have this knivesOut element, we can console.log(knivesOut). Then go to the browser. If we open our developer tools and reload, we'll see that we are getting the knivesOut element. It's an LI, it has an inner text of Knives Out.

Select an HTML Element with document.querySelector

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Introduction to Client Side Web APIs