Tag: Common Problems

  • How to Get the Children of the $(This) Selector?

    If you are working with JavaScript and using the jQuery library, you may come across a situation where you need to get the children of a specific element using the $(this) selector. In this blog post, we will explore different ways to achieve this. Method 1: Using the children() Method The children() method in jQuery…

  • $(Document).Ready Equivalent Without Jquery

    When working with JavaScript, it is common to use the jQuery library for various tasks. One of the most commonly used jQuery functions is $(document).ready(), which ensures that the code inside the function is executed only after the DOM is fully loaded. However, there may be situations where you want to achieve the same functionality…

  • How Can I Guarantee That My Enums Definition Doesn’t Change in Javascript?

    Enums are a useful feature in many programming languages, including JavaScript. They allow you to define a set of named constants, which can make your code more readable and maintainable. However, one problem with enums is that they can be modified at runtime, which can lead to unexpected behavior and bugs. In this blog post,…

  • Javascript Check If Variable Exists (Is Defined/Initialized)

    When working with JavaScript, it is important to check if a variable exists or is defined/initialized before using it. This can help avoid errors and ensure that your code runs smoothly. In this blog post, we will explore different ways to check if a variable exists in JavaScript. Method 1: Using the typeof operator The…

  • Iterate Through Object Properties

    In JavaScript, objects are a fundamental data type that allow you to store collections of key-value pairs. Often, you may need to iterate through an object’s properties to perform various operations or access specific values. In this blog post, we will explore different methods to iterate through object properties in JavaScript. Method 1: for…in Loop…

  • Get Selected Value in Dropdown List Using Javascript

    Dropdown lists are a common feature in web forms, allowing users to select an option from a list. In this blog post, we will explore how to get the selected value from a dropdown list using JavaScript. Method 1: Using the value property The value property of a dropdown list can be used to get…

  • What Is JSONP, and Why Was It Created?

    JSONP (JSON with Padding) is a technique used to bypass the same-origin policy in web browsers. It allows JavaScript code running on a webpage to make requests to a different domain than the one the code originated from. JSONP was created as a solution to the problem of making cross-domain requests in JavaScript. The same-origin…

  • Get the Size of the Screen, Current Web Page and Browser Window

    Get the Size of the Screen, Current Web Page and Browser Window As a tech professional working with JavaScript, you may often need to retrieve the size of the screen, current web page, or browser window. This information can be useful for various purposes, such as dynamically adjusting the layout or displaying content based on…

  • Check If a Variable Is a String in Javascript

    When working with JavaScript, it is often necessary to check the data type of a variable. One common task is to check if a variable is a string. In this blog post, we will explore different ways to accomplish this in JavaScript. Method 1: Using the typeof Operator The simplest way to check if a…

  • How Can I Get Query String Values in Javascript?

    When working with JavaScript, it is often necessary to retrieve the values from the query string of a URL. The query string is the part of the URL that comes after the question mark (?) and contains key-value pairs separated by ampersands (&). There are several ways to get query string values in JavaScript. Let’s…