r/learnjavascript

Hi everyone 👋
I started learning JavaScript today and practiced string methods like slice(), length, toUpperCase(), toLowerCase(), and concatenation.

I wrote this small snippet to take user input and convert the first character to uppercase while keeping the rest lowercase.

Here’s the code:

var name = prompt("What is your name?");
var sliceresult = name.slice(0, 1);
var ni = sliceresult.toUpperCase();
var low = name.slice(1, name.length);
var nn = low.toLowerCase();

alert("Hello " + ni + nn + "!");

Question :

1. Is this logic correct for basic name capitalization?

2. Are there cleaner or more idiomatic ways to do this in JavaScript?

3. Anything I should avoid or improve as a beginner?

Thanks!

Am I misunderstanding something, or is this basically how JavaScript arrays work? From what I can tell, JavaScript arrays are essentially just objects under the hood. The main difference is that they use [] as their literal syntax instead of {}, their keys look like numbers even though they’re actually strings internally, and they come with extra built-in behavior layered on top, like the length property and array-specific methods, which makes them behave more like lists than plain objects.

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