Sep 9, 2021 JavaScript
How to get the current timestamp in seconds in JavaScript

In this Article we will go through how to get the current timestamp in seconds only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const ts = () => Math.floor(new Date().getTime() / 1000);

Sep 9, 2021 JavaScript
How to get the day of the year from a date in JavaScript

In this Article we will go through how to get the day of the year from a date only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const dayOfYear = date => Math.floor((date - new Date(date.getFullYear(), 0, 0)) / (1000 * 60 * 60 * 24));

Sep 9, 2021 JavaScript
How to get the first date in the month of a date in JavaScript

In this Article we will go through how to get the first date in the month of a date only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const getFirstDate = (d = new Date()) => new Date(d.getFullYear(), d.getMonth(), 1);

Sep 9, 2021 JavaScript
How to calculate the number of difference days between two dates in JavaScript

In this Article we will go through how to calculate the number of difference days between two dates only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const diffDays = (date, otherDate) => Math.ceil(Math.abs(date - otherDate) / (1000 * 60 * 60 * 24));

Sep 9, 2021 JavaScript
How to calculate the number of months between two dates in JavaScript

In this Article we will go through how to calculate the number of months between two dates only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const monthDiff = (startDate, endDate) => Math.max(0, (endDate.getFullYear() - startDate.getFullYear()) * 12 - startDate.getMonth() + endDate.getMonth());

Sep 9, 2021 JavaScript
How to compare two dates in JavaScript

In this Article we will go through how to compare two dates only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const compare = (a, b) => a.getTime() > b.getTime();

Sep 9, 2021 JavaScript
How to convert a date to yyyy-mm-dd format in JavaScript

In this Article we will go through how to convert a date to yyyy-mm-dd format only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const formatYmd = date => date.toISOString().slice(0, 10);

Sep 9, 2021 JavaScript
How to sort an array of numbers in JavaScript

In this Article we will go through how to sort an array of numbers only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const sort = arr => arr.sort((a, b) => a - b);

Sep 9, 2021 JavaScript
How to split an array into chunks in JavaScript

In this Article we will go through how to split an array into chunks only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const chunk = (arr, size) => arr.reduce((acc, e, i) => (i % size ? acc[acc.length - 1].push(e) : acc.push([e]), acc), []);

Sep 9, 2021 JavaScript
How to swap the rows and columns of a matrix in JavaScript

In this Article we will go through how to swap the rows and columns of a matrix only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const transpose = matrix => matrix[0].map((col, i) => matrix.map(row => row[i]));