Help with code JS

Question

https://code.sololearn.com/W6P02P26P63C/?ref=app
var a=prompt("number")
var b=prompt("number")
var c=a+b
console.log(a+"+"+b+"="+c)
1+1=11

Answer 1

console.log("Console.log v1.0.0")
name=prompt("Your name")
console.log("Hello "+name+"!")
var a=prompt("number")
var b=prompt("number")
var c=a*1+b*1
console.log(a+"+"+b+"="+c)
//prompt returns strings, you have to convert them to numbers to do numeric operations... Number(n), n*1, n/1...

Answer 2

@ILYA use parseInt() function when asking for a number i.e. prompt a and b. I have edited your code in my version. See it. And also use ; semicolon in the end of the statements.
https://code.sololearn.com/Wl4Wghz5Cv9e/#html

Answer 3

thanks

Answer 4

A simple way to solve thus issue, try change to this:

var c=+a+ +b