The logical AND operator (&), the logical OR operator (||), and the logical NOT operator (!). There are three logical operators in JavaScript. This way, if-orīetter still, when-you encounter bugs, you’ll know if the issue is with React or JavaScript. To avoid or better understand bugs without asking questions like, “why is React reacting this way,” it’s better to start with understanding the fundamental principles or concepts of JavaScript that React was built on. I’ve heard many people say they “learned React” before learning JavaScript, and honestly, that feels like throwing things at the wall and seeing The React documentation defines React as a JavaScript library for building user interfaces. Although there are still many concepts you should be familiar with to be a better React developer, the ones mentioned here are almost always what you’ll This post covers concepts every JavaScript developer should be comfortable with before learning React.
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