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devdays/ojs-genericsExample.ts

Created December 22, 2014 17:57
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TypeScript generics example
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ojs-genericsExample.ts
interface Array<T> {
// ...
map<U>(callbackfn: (value: T, index: number, array: T[]) => U): U[];
// ...
}
var array: Array<string> = ["John", "Sam", "George"];
var lengths = array.map((val, idx, arr) => val.length);
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