Add data to HTML markup using Svelte 3

Tomasz Łakomy
InstructorTomasz Łakomy

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Published 3 years ago
Updated a year ago

In most Web applications we want to be able to render different HTML markup depending on values passed in from JavaScript code.

In this lesson we are going to learn how to render JavaScript variable in HTML markup when using Svelte 3.

Tomasz: [0:00] First, create a variable for storing our name. I'm going to have a name = "Tomasz," which is my name. Now, we would like to render it inside of this <h1> tag. What we need to do is to wrap name inside of curly braces. After we save that, we're going to see it over here.

[0:15] Whatever we decide to put inside of those curly braces is actually valid JavaScript. If you would like to, we can for instance do toUpperCase like this. It's going to shout, "Hello Tomasz." If we decide to change this value to something, we're going to see the effect immediately after we save it.