/TypeScript/Typescript "variable?: type" notation

Typescript "variable?: type" notation

// the "last" property is optional and can be undefined
function printName(obj: { first: string; last?: string }) {  // ...}// Both OKprintName({ first: "Bob" });printName({ first: "Alice", last: "Alisson" });Try

Source: typescriptlang.org

Similar codes

0 vote101 views1 answer
Typescript infinite loop
TypeScript
0 vote97 views1 answer
InsertSheet() at the beginning of active sheets google script
TypeScript
10 votes113 views1 answer
Keras cheatsheets pdfs
TypeScript
0 vote109 views1 answer
File reader with promise
TypeScript
5 votes105 views1 answer
Comments visual studio code html
TypeScript
0 vote105 views1 answer
Dots are displaying only when trying to fetch records html template
TypeScript
0 vote105 views1 answer
Increment all elements list python
TypeScript
2 votes94 views2 answers
Mat dialog
TypeScript
0 vote117 views1 answer
Sourcetree winmerge arguments three way merge
TypeScript
0 vote97 views1 answer
Elements in body don't want to center
TypeScript