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.

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

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

@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 from another …

Jul 20, 2019 · TypeScript cannot redefine == without breaking all JavaScript code that relies on its behavior (despite this having sad implications for 3). This also implies that TypeScript cannot change …

This has a 'Typescript version' dropdown that shows you the version the project is using, and if you open it the dropdown shows you ALL versions of TypeScript currently installed in Visual Studio.

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 exists in the …

Is there a way to parse strings as JSON in TypeScript? For example in JavaScript, we can use JSON.parse(). Is there a similar function in TypeScript? I have a JSON object string as follows: {"...

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:

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's docs: …