Today, we’re going to build a simple JavaScript script from scratch, and I’ll explain each line as we go along. Are you ready to see the code come together?

Code walkthrough (javascript):
‹var oldStyle = ‘function-scoped’;›
‹let count = 1;›
‹const MAX = 100;›
‹count = count + 1;›
‹console.log(oldStyle, count, MAX);›

What it looks like: Unsure which declaration keyword to reach for 😕 → var, let, and const each behave predictably differently ✅

Try it yourself: Try declaring a variable with different types and see how it impacts your code.

This is part 1/80 of our free Javascript – Web development basic tutorial series — new lessons every week.
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This is part 1/80 of our free Javascript – Web development basic tutorial series — new lessons every week.
👍 Subscribe for more web development tutorials!

This is part 1/80 of our free Javascript – Web development basic tutorial series — new lessons every week.
👍 Subscribe for more web development tutorials!

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