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 …
When should I use ?? (nullish coalescing) vs || (logical OR)?
The ?? operator was added to TypeScript 3.7 back in November 2019. And more recently, the ?? operator was included in ES2020, which is supported by Node 14 (released in April 2020).
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 …
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 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?
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, 5 months ago Modified 2 months ago Viewed 641k …
How to get current date and time in TypeScript - Stack Overflow
66 Summary I'm creating my first extension for VSCode in TypeScript, and want to create a new information message to display current date/time. What I've tried I've tried looking for some …
TypeScript, Looping through a dictionary - Stack Overflow
Apr 23, 2013 · TypeScript, Looping through a dictionary Asked 12 years, 3 months ago Modified 3 years ago Viewed 588k times
javascript - Typescript: React event types - Stack Overflow
What is the correct type for React events? Initially I just used any for the sake of simplicity. Now, I am trying to clean things up and avoid use of any completely. So in a simple form like this: ...
Is it (`?:`) typescript ternary operator - Stack Overflow
I saw the code below in a TypeScript example: export interface EjectTaskOptions extends BuildOptions { force?: boolean; app?: string; } What does ?: mean? Is it a ternary operator …