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vkurchatkin/2.js

Last active January 10, 2017 11:49
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2.js
type Animal =
| { t: 'Cat' }
| { t: 'Dog' }
;
function addADog(arr: Array<Animal>) {
arr.push({ t: 'Dog' });
}
const cats: Array<{ t: 'Cat' }>= [];
addADog(cats);
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