Monday, June 25, 2018

Tuple data type in Typescript

// Declare a tuple type
let tuple: [string, number, boolean ];
// Initialize it
tuple = ["hello", 10, false]; // OK
// Initialize it incorrectly
tuple = [10, "hello", false]; // Error

console.log(tuple[0]);  // hello

console.log(tuple[1]);  // 10

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