Create a regular expression to validate if the given input is valid Indian mobile number or not

• Regular expression check has to have an optional +91 or 0 in the beginning, then an optional space and 10 digits
• test method of regular expression can be used to validate if the mobile number pattern matches or not

Challenges (0/5 done)

• validateMobile('+919876543210') returns true
• validateMobile('+91 9876543210') returns true
• validateMobile('09876543210') returns true
• validateMobile('9876543210') returns true
• validateMobile('99876543210') returns false

const number = '+919876543210';

function validateMobile(number) {
    // write your solution here

    return
}

console.log(`is a valid Indian mobile number: ${validateMobile(number)}`)