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The code you provided demonstrates the usage of regular expressions in JavaScript to match and manipulate text based on specific patterns. Let's go through the code and understand its functionality: const str = `...`; // The text content to be matched and manipulated console.log(str.match(/^h.../gm)); // Matches strings starting with 'h' followed by any three characters. console.log(str.match(/\..

Regular expressions, often referred to as regex or regexp, are powerful tools for pattern matching and manipulating text in various programming languages, including JavaScript. A regular expression is a sequence of characters that defines a search pattern. It consists of a combination of ordinary characters and special characters (metacharacters) that have special meaning within the pattern. // ..

In web development, the location object in JavaScript provides information about the current URL and allows you to interact with it. It represents the URL of the document being displayed in the browser window and provides methods and properties for working with different aspects of the URL. Here are the key aspects of the location object: Accessing the Location Object: The location object is acc..

In web development, the history object in JavaScript provides access to the browser's history stack. It allows you to programmatically manipulate the browser's history, navigate between pages, and control the browsing session. Here are the key aspects of the history object: Accessing the History Object: The history object is accessible through the window.history property. Navigating History: The..

In web development, the "Web Storage" API provides a way to store data locally in the user's web browser. It consists of two mechanisms: localStorage and sessionStorage. Both mechanisms offer a simple key-value storage interface and are supported by modern web browsers. Here are the key points about Web Storage: localStorage: The localStorage object allows you to store key-value pairs persistent..

cookie In web development, a cookie is a small piece of data stored by a website in the user's web browser. Cookies are commonly used to store information that can be retrieved and used by the website or other websites that recognize the cookie. They are primarily used for session management, personalization, tracking, and maintaining user preferences. Here are some key points about cookies: Sto..