Today I Learned - Rocky Kev

TIL Computed Properties in Javascript

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TAGS: naming javascript mdn

Today I learned about Computed Property names.

This is useful for a lot of reasons, like creating a Factory Pattern where you need to shape objects with unique keys.

const yourKeyVariable = "happyCount";
const someValueArray= [...];

const obj = {
    [yourKeyVariable]: someValueArray,
}

another example:

// Computed property names
let i = 0;
const a = {
  [`foo${++i}`]: i,
  [`foo${++i}`]: i,
  [`foo${++i}`]: i,
};

MDN on Computed Property Names

and via StackOverflow

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TIL Computed Properties in Javascript

Today I learned about Computed Property names.

TIL Computed Properties in Javascript

Today I learned about Computed Property names.