Could someone please provide guidance on how I can perform Regex form validation in JavaScript?
The student's name must consist of only alphabet characters, with an equal number of vowels and consonants.
Could someone please provide guidance on how I can perform Regex form validation in JavaScript?
The student's name must consist of only alphabet characters, with an equal number of vowels and consonants.
Using Regex alone might not be sufficient for this task.
In my approach, I filter out all non-vowel characters in a string and calculate their length, as well as the length of consonants. To validate the name, we compare the number of vowels and consonants.
const getNumberOfVowels = (string) => string.replace(/[^aeiouAEIOU]/g, "").length;
const getNumberOfConsonants = (string) => string.replace(/[aeiouAEIOU]/g, "").length;
const isAValidName = (name) => {
const vowels = getNumberOfVowels(name);
const consonants = getNumberOfConsonants(name);
return vowels === consonants;
}
console.log(isAValidName("Adam"));
To accomplish this task, you must develop a function that serves two purposes:
The expressions required for this purpose include:
/^[a-z]+$/i – Solely alphabetical characters (regardless of case)/[aeiouy]/ig – Only vowels/[^aeiouy]/ig– Only consonantsconst isValidName = (name) =>
/^[a-z]+$/i.test(name) &&
name.match(/[aeiouy]/ig).length === name.match(/[^aeiouy]/ig).length;
console.log(isValidName('Gene')); // Valid
console.log(isValidName('Abby')); // Valid
console.log(isValidName('Charles')); // InvalidTo ensure the validity of a student's name, you can utilize the following code snippet:
const validateStudentName = (name) => {
const regExp = /[^a-zA-Z]/;
const isEven = name.length % 2 == 0;
const vowels = ['a', 'e', 'i', 'o', 'u'];
const vowelCount = [...name].reduce((sum, char) => vowels.includes(char.toLowerCase()) ? sum + 1 : sum, 0);
console.log(!regExp.test(name) && isEven && vowelCount === name.length / 2);
}
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