In this Article we will go through how to get the value at given path of an object 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 getValue = (path, obj) => path.split('.').reduce((acc, c) => acc && acc[c], obj);

In this Article we will go through how to invert keys and values of an object 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 invert = obj => Object.keys(obj).reduce((res, k) => Object.assign(res, {[obj[k]]: k}), {});

In this Article we will go through how to immutably rename object keys 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 renameKeys = (keysMap, obj) => Object.keys(obj).reduce((acc, key) => ({ ...acc, ...{ [keysMap[key] || key]: obj[key] }}), {});

In this Article we will go through how to omit a subset of properties from an object 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 omit = (obj, keys) => Object.keys(obj).filter(k => !keys.includes(k)).reduce((res, k) => Object.assign(res, {[k]: obj[k]}), {});

In this Article we will go through how to pick a subset of properties of an object 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 pick = (obj, keys) => Object.keys(obj).filter(k => keys.includes(k)).reduce((res, k) => Object.assign(res, {[k]: obj[k]}), {});

In this Article we will go through how to remove all null and undefined properties from an object 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 removeNullUndefined = obj => Object.entries(obj).reduce((a, [k, v]) => (v == null ? a : (a[k] = v, a)), {});

In this Article we will go through how to shallow copy an object 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 shallowCopy = obj => Object.assign({}, obj);

In this Article we will go through how to round a number to a given number of digits 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 round = (n, decimals = 0) => Number(`${Math.round(`${n}e${decimals}`)}e-${decimals}`);

In this Article we will go through how to subtract arguments 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 subtract = (...args) => args.reduce((a, b) => a - b);

In this Article we will go through how to truncate a number at decimal 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 truncate = n => ~~n;