typescript / beginner
Snippet
Function Parameter Types
In TypeScript, you can specify types for both function parameters and the value the function returns.
snippet.ts
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function greet(person: string): string {return "Hello, " + person;}const message = greet("Anna");
Breakdown
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person: string
The function expects one argument, which must be a string.
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): string {
The colon after the parentheses indicates the function will return a string.
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greet("Anna")
Calling the function with a valid string argument.