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thebeebs/typeInference.ts

Last active August 29, 2015 13:56
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You can define you own types using interfaces. Thing describes the object literal with an (a) number property and a (b) string property. Even though the process function doesn't return a type we have given the compiler enough information to infer that (n) will be of type number.
Raw
typeInference.ts
interface Thing {
a: number;
b: string;
}
function process(x: Thing){
return x.a;
}
var n = process({a: 10, b:'Beeby'})
n.toFixed(0.0);
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