Coercion in JavaScript
What is Coercion in JavaScript? In JavaScript, the process of converting the type of a variable into another is called Coercion. This means a variable of string type when changed to a number type due to some process is called coercion of the variable. let a="34"; //defining a as string type let b=5; //defining b as a number type let sum=a+b; console.log(sum); // 345 ?? typeof(sum); //The result would be "string" In the above code snippet, since the variable a is defined as a string type, it will be considered as a string. Hence JavaScript has coerced the 5 from a number into a string and then concatenated the two values together, resulting in a string of 345 . Now, let’s take another case. let a=34; //defining a as string type let b=5; //defining b as a number type let sum=a+b; console.log(sum); // 39 typeof(sum); //The result would be "number" The above code makes it clear that since both the variables were declared as a Number, the resulting s...
