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TypeScript - add years to date

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Created by:

Bess

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In this article, we would like to show you how to add years to date in TypeScript.

Example reusable function

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In this example, we create a simple function that takes two arguments:

date to which we want to add some years (as Date),
years that we want to add to the date (as number).

Practical example:

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const addYears = (date: Date, years: number): Date => {
  const result = new Date(date);
  result.setFullYear(result.getFullYear() + years);
  return result;
};
​
​
// Usage example:
​
const date = new Date('2021-08-30T08:00:00.000Z');
​
console.log(addYears(date, 1).toISOString()); // 2022-08-30T08:00:00.000Z