Using TypeScript to destructure arrays within a parameter list

As I delve into TypeScript, my focus is on mastering array destructuring within the arguments list.

While object destructuring is feasible using this method:

let foo = function({firstname, lastname}){...}

foo({
  firstname: 'ralph',
  lastname: 'lauren'
});

I am intrigued by the possibility of applying similar techniques to array destructuring which could be immensely beneficial for me, like so:

let bar = function([desc, opts, fn]){...}

bar([
  'yes',
   {},
   function(){}
]);

Can array destructuring in TypeScript be achieved in a manner akin to this?

Answer №1

TS refers to an array of fixed length and types as a tuple. When we want to destructure a tuple argument, we can do it like this:

let example = function ([description, options, func]: [string, {}, Function]) {


}

example([
    'yes',
    {},
    function () { }
]);

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