JRJay Rajputinjayrajputcode.hashnode.dev·Mar 16, 2023 · 5 min readWhat is Array.reduce() and how to use it?What is reduce method? If you have used functional programming, then you might have come across reduce method a lot of times. reduce is one of the methods that follow the functional programming paradigm: it is predictable, we get the same output for...02AA
JRJay Rajputinjayrajputcode.hashnode.dev·Feb 22, 2023 · 4 min readNullish coalescing and optional chaining in JavaScriptNullish Coalescing operator ?? nullish coalescing operator is represented by ?? This operator checks if the left operand is null or undefined and return the first value on the right if the left operand is one of these value why do we need this operat...00
JRJay Rajputinjayrajputcode.hashnode.dev·Feb 20, 2023 · 4 min readWhat is destructuring in JavaScript?What is the destructuring syntax? As per MDN: The destructuring assignment syntax is a JavaScript expression that makes it possible to unpack values from arrays, or properties from objects, into distinct variables. Let's try to understand what that...01A
JRJay Rajputinjayrajputcode.hashnode.dev·Feb 17, 2023 · 2 min readWhat are errors in JavaScript?errors are encountered by programmers every day when writing. They are a crucial part of developers' life. Therefore understanding what is an error and what different types of error mean is very handy knowledge. What is an error? Errors in Javascript...00
JRJay Rajputinjayrajputcode.hashnode.dev·Feb 14, 2023 · 2 min readWhat is == and === in JavaScript?Comparing values is one of the most common tasks in programming. Have you ever wondered how comparison works in JavaScript? In javascript there are two ways to do comparisons: the equality operator (==) and the strict equality operator(===) the equal...00
