/TypeScript/How to validate if all characters enetred in a string are alphabets and then reprompt user

How to validate if all characters enetred in a string are alphabets and then reprompt user

#include <iostream>
#include <string>
#include <cctype>

// check for only alphabetical letters in string (or spaces)
bool lettersOrSpaces(const std::string& str)
{
    for (size_t i = 0; i < str.size(); i++)
    {
        // make sure each character is A-Z or a space
        if (! std::isalpha(str[i]) && ! std::isspace(str[i]))
        {
            return false; ///< at least one "no match"
        }
    }
    return true;  ///< all characters meet criteria
}

int main()
{
    std::string townName;
    std::cout << "Enter name of town: ";
    while (std::getline(std::cin, townName) && !lettersOrSpaces(townName))
    {
        std::cout << "Enter the town name - alphabet only: ";
    }
    std::cout << "The name of town is: " << townName << std::endl;

    return 0;
}

Source: stackoverflow.com

Similar codes

2 votes326 views1 answer
How to get post of instragram using api
TypeScript
0 vote384 views1 answer
Why are lower case alphabets more preffered in html
TypeScript
0 vote298 views1 answer
Difference between test strategy vs test plan
TypeScript
0 vote361 views1 answer
The pipe 'json' could not be found!
TypeScript
0 vote270 views1 answer
Peer of typescript@>=2.8.0
TypeScript
2 votes295 views1 answer
Vscode custom snippets how to use file name
TypeScript
0 vote287 views1 answer
Splice array based on index typescript
TypeScript
0 vote316 views1 answer
Rails flags for tests assets and helpers
TypeScript
0 vote278 views1 answer
How to make a dictionary of indices and lists python
TypeScript
6 votes313 views2 answers
Typescript how to create an array instance
TypeScript