Posts under javascript

Tutorial on how to cancel previous requests in in a search bar using fetch in JavaScript and React.

Guide on why this.setState is not a function error or Cannot read properties of undefined (reading 'setState') occurs and explanation on how to fix the error in 2 different ways.

Guide on what is not not or double bang (!!) operator in JavaScript and how it can be used to evaluate the truthiness of an expression.

Tutorial on what are JavaScript spread operator and how to use it in React. Also explains about how to use spread operator for arrays and objects

Tutorial on how to fix "SyntaxError: Unexpected token < in JSON at position 0" and "Unexpected end of JSON input" errors in JavaScript and React

Tutorial on different ways to add script to a React component. Examples on methods like adding to the html, adding using useEffect and using react helmet.