Question:
I've seen a question recently and I don't understand why the result is giving me a numeric value if it's string operations.
The operation is "1" - - "1" , and the logic would tell me that the result is "11" , but it is 2 .
console.log("1" - - "1");What is the cause of this behavior?
Answer:
To concatenate Strings in JS use +, so "1" + "1" return "11"
You cannot perform subtraction (subtraction) on strings, so JS converts both "1" to numbers and performs the operation, resulting in 1--1 = 1+1 = 2