JavaScript Interview
What is the this Keyword in JavaScript?
The this keyword in JavaScript refers to the object that is executing the current function. Its value depends on how and where the function is called. Key Rules for this…
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Difference Between position: relative and position: absolute in CSS
Propertyposition: relativeposition: absoluteDefinitionThe element is positioned relative to its original position in the normal document…
What is Block level Element and Inline Level Element?
Block-level Elements Block-level elements occupy the entire width of their parent container (by default) and…
What is Position in CSS?
In CSS, the position property is used to specify how an element is positioned in…
Explain var let and const in JavaScript with Example.
In JavaScript, var, let, and const are used to declare variables. They differ in scope,…
Lasted JavaScript Interview
What are the map, filter, and reduce methods in JavaScript?
In JavaScript, map(), filter(), and reduce() are array methods that help in transforming and processing data efficiently. They are part…
What is a Promise in JavaScript, and what are its parameters?
A Promise in JavaScript is an object that represents the eventual completion (or failure) of an asynchronous operation and its…
What is Callback Hell in JavaScript?
Callback Hell in JavaScript refers to a situation where you have multiple nested callbacks, making the code difficult to read,…