Please help me fix my JS code

Question

Any help will be appreciated

Here is the code

https://code.sololearn.com/W2izb2c5Q4us/#html

Answer 1

Like this one?

Code:
function yourName() {
var b = false
while(b == false) {
userInput = prompt("What is your name? ")
if(userInput == "") {
alert("You didn't input anything!");
continue
}
find = userInput.replace(/[\D]/g, '')
if(find != "") {
alert("Your didn't contain a number!")
continue
}
b = true
}
alert("Hey there "+userInput+" !")
}

Answer 2

try/catch block

Answer 3

Thank you @Thomas Hj
this exactly what i wanted to code
I really a appreciate you all

Answer 4

I want to alert the user when he/she enters a digit (0-9)

Answer 5

Please check it out again
https://code.sololearn.com/W2izb2c5Q4us/#html

Answer 6

You need to match the regex using
decimal = userInput.match(yourRegEx)

Answer 7

Your welcome :)

I forget to add ' || userInput == null ' but I think you know where to be added in.