NTNishtha thakkarinnishtha0503.hashnode.dev·Feb 23, 2023 · 2 min readOptional Chaining (?.)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...01I
NTNishtha thakkarinnishtha0503.hashnode.dev·Feb 12, 2023 · 1 min readWhy do we need arrow functions?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...00
NTNishtha thakkarinnishtha0503.hashnode.dev·Feb 12, 2023 · 1 min readType Error vs Reference ErrorWhat 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...00
NTNishtha thakkarinnishtha0503.hashnode.dev·Feb 12, 2023 · 2 min readDifference between == and ===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 ...00
NTNishtha thakkarinnishtha0503.hashnode.dev·Jan 27, 2023 · 1 min readInstallation of React nativeSteps 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...00
