Help me with the code, most of the test cases passed but when a negative number encounter it return its positive value.

var input =function(t){
var n = String(t)
var reg = /\d+/
var result = n.match(reg)
var a = parseInt(result)

if (result){
return a
}
else{return 'Nan'}
}
console.log(input('-18.12'))

Comments

[jrogers8835]

Also I assume you're doing this as a learning excercise, as there are easier ways of doing this if you're just looking for a utility function?

[SHivam Sinha]

Yes as a beginner I am learning the stuff.

[jrogers8835]

See my other comment for guidance. If you can't figure it out after a few hours of playing with regex, message me and I'll send you the pattern.

[jrogers8835]

When you convert to a string the '-' loses context. You would need ^[-+]?\d*$ to allow the negative sign. This doesn't work for decimals btw. Not sure if you want those.

[SHivam Sinha]

still not working
gives an unexpected error.
Help

[jrogers8835]

I did mention it doesn't work for decimals. Regex is useful. Use this site for testing and see what you can find from google to account for decimals.
regexr.com/
Hint: '.' Is a special character