What is the TypeScript language? What can it do that JavaScript or available libraries cannot do, that would give me reason to consider it?

Jul 20, 2019 · Typescript actually does fix == vs === (as far as possible at least). In Javascript there are two comparison operators: == : When comparing primitive values, like numbers and strings, this …

The nullish coalescing operator (??) in JavaScript only considers null or undefined as "nullish" values. If the left-hand side is any other value, even falsy values like "" (empty string), 0, or false, it will not use …

Oct 21, 2024 · 73 I'm working on a project using Vite, and I want to understand the difference between using TypeScript alone and TypeScript with SWC. I've searched online but couldn't find a clear …

Dec 11, 2008 · I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing …

Jul 1, 2020 · Javascript vs typescript is completely different axis. Javascript is the main programming language used by webpages. Typescript is a superset of javascript, which lets you add type …

One major difference is that interfaces is purely a typescript construct, only used at compile-time - that is to say, interfaces add nothing to the final transpiled javascript output, they vanish completely (which …

Apr 21, 2019 · That is not vanilla JavaScript; it is TypeScript. as any tells the compiler to consider the typed object as a plain untyped JavaScript object. The as keyword is a type assertion in TypeScript …

Object types An object in JavaScript is a key/value map, and an "object type" is typescript's way of typing those key/value maps. Both interface and type can be used when providing types for an object …

var s2 = "A string, in TypeScript of type 'string'"; var s3: string; String is the JavaScript String type, which you could use to create new strings. Nobody does this as in JavaScript the literals are considered …