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- Why use triple-equal (===) in TypeScript? - Stack Overflow
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 one which is preferable
- 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, whats it called?)
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 where TypeScript can immediately stop running some expressions if we run into a null or undefined The star of the show in optional chaining is the new ? operator for optional property accesses Refer to the TypeScript 3 7
- In TypeScript, what is the ! (exclamation mark bang) operator when . . .
In TypeScript, what is the ! (exclamation mark bang) operator when dereferencing a member? Asked 8 years, 4 months ago Modified 1 month ago Viewed 639k times
- 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?
- 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 can I generate a tsconfig. json file? - Stack Overflow
How can I generate a tsconfig json via the command line? I tried command tsc init, but this doesn't work
- 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, readonly } } new MyClass() myReadOnlyProperty = 5; error, readonly It's not exactly a constant because it allows assignment in the constructor, but that's most likely not a big deal Alternative Solution An
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