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

The key aspect to interfaces in typescript that distinguish them from types is that they can be extended with new functionality after they've already been declared.

Learn how to dynamically assign properties to an object in TypeScript with this helpful guide.

I guess this is a bug in TypeScript, so you should raise one at the project site. You can make use of the typed dictionary by splitting your example up in declaration and initialization, like:

@Esko I believe that in typescript the const is limited to the file because each file is a module. To make it accessible outside, you would need to declare it with export const and then import it …

135 There is a little known feature in TypeScript that allows you to use Mixins to create re-usable small objects. You can compose these into larger objects using multiple inheritance (multiple …

Although Typescript is a strongly typed language, it has the same problems with pointers and variables initialization inherited from Javascript. Javascript doesn't check whether a variable …

TypeScript's instanceof shares the same problems. As it is a language which is still in its development I recommend you to state a proposal of such facility. See also: MDN: instanceof …

TypeScript Importer works well, also with custom rootDirs or mappings using paths in tsconfig.json. It fixes the broken autoimport of VS Code.

Jul 20, 2019 · In JavaScript, it's commonly seen as best practice to use === instead of ==, for obvious and well-known reasons. In TypeScript, which is one to be preferred? Is there even …