Promises and code flow.Promises are a built-in feature in JavaScript that helps to manage asynchronous operations. They are objects that represent the eventual completion or failure of an asynchronous operation and its resulting value. Promises provide a more organized way...Mar 18, 2023 · 8 min readtechstick.hashnode.dev
Reference Error Vs Type ErrorReference error In a case where a variable reference can't be found or hasn't been declared, then a Reference error occurs. ( buying a gift on a valentine but later you realize you don't have a girlfriend. It's a reference error.) console.log( girlf...Feb 14, 2023 · 1 min readtechstick.hashnode.dev
Difference between '==' and '===' in JavaScript.what is '==' ? Double equals (==) is a comparison operator, which transforms the operands having the same type before comparison. In the example given below, '1' is a string but as we used == it converts the string to a number and returns true. 1 == ...1AFeb 14, 2023 · 2 min readtechstick.hashnode.dev
Undefined mystery of console.what is undefined in JavaScript? undefined is one of the 7 primitive data types in JS.undefined does not mean empty. It means a variable is declared but still, there is no value assigned to it. In non-technical terms, you place a handkerchief on a se...1AFeb 13, 2023 · 4 min readtechstick.hashnode.dev
