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Feb 23, 2023 · 2 min read · 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...
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Feb 12, 2023 · 1 min read · 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...
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Feb 12, 2023 · 1 min read · 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...
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Feb 12, 2023 · 2 min read · 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 ...
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Jan 27, 2023 · 1 min read · 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...
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