typescript 22variable 3f 3a type 22 notation
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showing results for - "typescript 22variable 3f 3a type 22 notation"
Daniele
03 Aug 2019
1// the "last" property is optional and can be undefined
2function printName(obj: { first: string; last?: string }) { // ...}// Both OKprintName({ first: "Bob" });printName({ first: "Alice", last: "Alisson" });TryAriana
05 Aug 2018
1// Writing ! after any expression is effectively a type assertion
2// that the value isn’t null or undefined
3function liveDangerously(x?: number | null) { // No error console.log(x!.toFixed());}Trysimilar questions
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