--- title: "Nishtha thakkar (@nishtha05) | Hashnode" description: "Learning full stack development. Read the latest articles by Nishtha thakkar on Hashnode." url: "https://hashnode.com/@nishtha05" --- @nishtha05 # Nishtha thakkar @nishtha05 · Joined August 2022 Learning full stack development ### [Optional Chaining (?.)](https://nishtha0503.hashnode.dev/optional-chaining?utm_source=hashnode&utm_medium=feed) What is Optional Chaining? Optional chaining is represented with (?.) and was introduced in ES62020. Optional chaining is used to access object properties; if we don't get a value, it returns undefined. After ?. this sign it helps to access propert... 2 min read · [nishtha0503.hashnode.dev](https://nishtha0503.hashnode.dev/optional-chaining?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/optional-chaining/63f760505aa3480fa46f0530) [Feb 23, 2023](https://hashnode.com/posts/optional-chaining/63f760505aa3480fa46f0530) ### [Why do we need arrow functions?](https://nishtha0503.hashnode.dev/why-do-we-need-arrow-functions?utm_source=hashnode&utm_medium=feed) What are Arrow functions? Arrow functions introduced in ES6 provide a concise way to write functions in JavaScript. Content under arrow functions is lexically or statically defined. It is also known as "fat arrow functions". The function written... 1 min read · [nishtha0503.hashnode.dev](https://nishtha0503.hashnode.dev/why-do-we-need-arrow-functions?utm_source=hashnode&utm_medium=feed) [Feb 12, 2023](https://hashnode.com/posts/why-do-we-need-arrow-functions/63e8c23d5bb8055a6824ec45) ### [Type Error vs Reference Error](https://nishtha0503.hashnode.dev/type-error-vs-reference-error?utm_source=hashnode&utm_medium=feed) What is Type Error? A Type error is caused when : an operand or argument passed to a function is incompatible with the type expected modified a value that cannot be changed. trying to use the value that can't be used. There is a variable named c... 1 min read · [nishtha0503.hashnode.dev](https://nishtha0503.hashnode.dev/type-error-vs-reference-error?utm_source=hashnode&utm_medium=feed) [Feb 12, 2023](https://hashnode.com/posts/type-error-vs-reference-error/63e8a97a43ee9f3adaa9e563) ### [Difference between == and ===](https://nishtha0503.hashnode.dev/difference-between-abstract-and-strict-comparison-operator?utm_source=hashnode&utm_medium=feed) What is Difference between == and === Both are used to compare two values but the only difference is that == compare only deals and give a boolean value actual whereas === will compare both deals and datatype and return true. The === is also known ... 2 min read · [nishtha0503.hashnode.dev](https://nishtha0503.hashnode.dev/difference-between-abstract-and-strict-comparison-operator?utm_source=hashnode&utm_medium=feed) [Feb 12, 2023](https://hashnode.com/posts/difference-between-abstract-and-strict-comparison-operator/63e89bf3f67714bf5f06a311) ### [Installation of React native](https://nishtha0503.hashnode.dev/installation-of-react-native?utm_source=hashnode&utm_medium=feed) Steps to follow download react native First, need to download node.js from official website Node.js official website. The second step is to install JDK8 (Java Development Kit): Open an Administrator Command Prompt right click Command Prompt and sel... 1 min read · [nishtha0503.hashnode.dev](https://nishtha0503.hashnode.dev/installation-of-react-native?utm_source=hashnode&utm_medium=feed) [Jan 27, 2023](https://hashnode.com/posts/installation-of-react-native/63d3fa0097b0aee23c988db3)