Compare date (no time) with current day in javascript

Get current date with new Date() and setHours to 0, 0, 0 and then you are ready to compare with the input date, which is a string in the yyyy-MM-dd format

export const isLessThanToday = (input: string): boolean => { //format of input date is YYYY-MM-DD
    const today = new Date();
    today.setHours(0, 0, 0);

    return notEmpty(input) && new Date(input) < today;

To test that we can use the following jest test:

    describe('isLessThanToday > ', () => {
            [null, false],
            [undefined, false],
            ['AXON', false],
            ['1900-01-01', true],
            ['2099-12-12', false], // TODO change this date when in 2099 :)
            [new Date().toISOString().slice(0, 10), false], //today
            [new Date(new Date().setDate(new Date().getDate() - 1)).toISOString().slice(0, 10), true], //yesterday
            [new Date(new Date().setDate(new Date().getDate() - 7)).toISOString().slice(0, 10), true], //one week ago
        ])('given input date %p, it should return %p', (input, expected) => {

See this How to use jest test.each function to understand the usage of test.each function

Shared with from Codever. 👉 Use the Copy to mine functionality to copy this snippet to your own personal collection and easy manage your code snippets.

Codever is open source on Github ⭐🙏

Subscribe to our newsletter for more code resources and news

Adrian Matei (aka adixchen)

Adrian Matei (aka adixchen)
Life force expressing itself as a coding capable human being

Mongoose schema field from list of strings (enum)

Mongoose schema field from list of strings (enum) code snippet Continue reading

Set value of input field in angular template

Published on December 14, 2022

How to use jest test.each function

Published on December 14, 2022