Media query is a CSS technique used to apply different styles based on the characteristics of the device displaying the webpage.

• Media queries are used in responsive web design to make websites adapt to different screen sizes and devices.

• They are written using the @media rule in CSS.

• Media queries can target various aspects such as screen width, height, orientation, and resolution.

• Example: @media only screen and (max-wid...read more

Yes, I am familiar with jQuery and have used it in various projects.

• Used jQuery for DOM manipulation and event handling

• Implemented AJAX functionality with jQuery

• Utilized jQuery plugins for enhanced functionality

React is a JavaScript library for building user interfaces.

• React allows for the creation of reusable UI components.

• It uses a virtual DOM for efficient rendering.

• React can be used to build single-page applications.

• State and props are used for managing data and passing data between components.

Required field in SQL is a column that must contain a value before a record can be saved.

• A required field is specified using the NOT NULL constraint in SQL.

• Example: CREATE TABLE Students (ID INT NOT NULL, Name VARCHAR(50) NOT NULL);

HTML is a markup language used for creating the structure of web pages.

• HTML stands for HyperText Markup Language

• It uses tags to define the structure of content on a web page

• Example:

  This is a heading

The resolution of a mobile screen refers to the number of pixels in each dimension that can be displayed.

• Resolution is typically expressed as width x height, such as 1920x1080 for Full HD.

• Common mobile screen resolutions include 720x1280 (HD), 1080x1920 (Full HD), and 1440x2560 (Quad HD).

• Higher resolution screens provide sharper images and text, but may consume more battery power.

An attribute is a characteristic or property of an HTML element that can be used to provide additional information or modify the element's behavior.

• Attributes are used to define the behavior or appearance of an HTML element.

• Attributes are always specified in the start tag of an element, inside the opening tag.

• Examples of attributes include 'src' in the tag for specifying the image source, 'href' in the tag for specif...read more

An unclosed tag can cause rendering issues and break the structure of the webpage.

• An unclosed tag can lead to unexpected behavior in the layout of the webpage.

• It is important to always close HTML tags properly to ensure correct rendering.

• Example:

  Some content without closing tag

• Example:

  Front end Developer Interview Questions & Answers

  Pratiti Technologies Sagar Javir

  posted on 21 Sep 2024