Programing
Are you still writing old-school for or while loops in JavaScript? If so, you're not alone — but you're definitely missing out. JavaScript offers a suite of powerful array methods that are more readable, concise, and often more efficient. Not only do these methods make your code
n8n
By adding the external pg package to a custom n8n Docker image, you can easily use a Code node to interact with PostgreSQL. Here’s a step-by-step guide to achieve this. Dockerfile The Dockerfile adds the PostgreSQL package (pg) globally to the n8n image. # Use the latest official n8n image
Javascript
1. Array Methods 1: [1, 2, 3].length; // 3 [1, 2, 3].push(4); // [1, 2, 3, 4] [1, 2, 3].unshift(0); // [0, 1, 2, 3] [1, 2, 3].pop(); // [1, 2] [1, 2, 3].shift(); // [2, 3] [1, 2, 3].at(2); // 3 [1, 2, 3].indexOf(3)
Javascript
In JavaScript, there are three primary ways to create a function: Function Declaration, Function Expression, and Arrow Function. 1. Function Declaration: Example Code: function sayHello() { console.log("Hello, World!"); } Characteristics: One of the major features of function declarations are hoisted to the top of their scope. Which mean,
Javascript
To add a new property: There are four ways to add a new property to an object in JavaScript: 1. Using Dot notation: const obj = {name: "daviblog", age: 29 }; obj.job = "Programmer"; // obj = {name: "daviblog", age: 29, job: "Programmer"} 2. Using Bracket
Javascript
Data types in JavaScript var years = 3; // number var name = 'Codecrumbs'; // string var name = { first: "string A", last: "string B" }; // object var isValid = false; // boolean var arrayA = ['apple', true, 2]; // array var b; typeof b; // undefined var b = null; // value null String