Handling Concatenation Confusion: Adding Strings as Numbers

When attempting to add strings containing numeric characters, it's common to encounter concatenation, resulting in unexpected outcomes. To resolve this issue, it's necessary to convert the strings to numerical values before performing addition.

Solution:

To force the strings to be treated as numbers, use the unary plus operator ( ). This operator converts the strings to numerical values, allowing for addition as intended:

const num1 = '20';
const num2 = '30.5';

console.log( num1    num2); // 50.5