Why use triple-equal (===) in TypeScript? - Stack Overflow
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 …
Does Typescript support the ?. operator? (And, what's it called?)
Jan 17, 2017 · Yes. As of TypeScript 3.7 (released on November 5, 2019), this feature is supported and is called Optional Chaining: At its core, optional chaining lets us write code …
In TypeScript, what is the ! (exclamation mark / bang) operator …
Feb 16, 2017 · In TypeScript, what is the ! (exclamation mark / bang) operator when dereferencing a member? Asked 8 years, 4 months ago Modified 1 month ago Viewed 638k …
typescript - 'unknown' vs. 'any' - Stack Overflow
Jul 20, 2018 · TypeScript 3.0 introduces unknown type, according to their wiki: unknown is now a reserved type name, as it is now a built-in type. Depending on your intended use of unknown, …
TypeScript: Type 'string | undefined' is not assignable to type …
Feb 2, 2019 · Alternatively, you can type name1 as string | undefined, and handle cases of undefined further down. However, it's typically better to handle unexpected errors earlier on. …
What does the ampersand (&) mean in a TypeScript type definition?
Intersection type in Typescript A & in TS in the context of a types means an intersection type. It merges all properties of 2 object types together and creates a new type
How do I dynamically assign properties to an object in TypeScript ...
Learn how to dynamically assign properties to an object in TypeScript with this helpful guide.
What is TypeScript and why should I use it instead of JavaScript?
What is the TypeScript language? What can it do that JavaScript or available libraries cannot do, that would give me reason to consider it?
Sort an array of objects in typescript? - Stack Overflow
How do I sort an array of objects in TypeScript? Specifically, sort the array objects on one specific attribute, in this case nome ("name") or cognome ("surname")? /* Object Class*/ export class ...
typescript - How to implement class constants? - Stack Overflow
TypeScript 2.0 has the readonly modifier: class MyClass { readonly myReadOnlyProperty = 1; myMethod() { console.log(this.myReadOnlyProperty); this.myReadOnlyProperty = 5; // error, …