In this article, we will see different approaches to finding whether a character is a vowel or a consonant using JavaScript. We will check the condition of a character being Vowel and display the result.
Approaches to find if a character is a vowel or consonant
- Using conditional Statements
- Using JavaScript array and .include method
- Using Regular expression
Method 1: Using conditional statements
In this method, we will use if-else conditional statements to check if the letter is a vowel or not and display the output result.
Example: This example demonstrates the conditional statements for vowels and consonants.
Javascript
function checkChar(char){ ch = char.toLowerCase(); if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') return console.log("Given character is a Vowel"); return console.log("Given character is a Consonent"); } checkChar('G'); checkChar('A') |
Given character is a Consonent Given character is a Vowel
Method 2: Using JavaScript array and Array .includes() method
In this method, we will use JavaScript array of vowels and use includes method to check if given character is present in the array then it is a vowel and consonant otherwise.
Example: In this example, we will check if vowels array includes the input cahracter or not.
Javascript
function checkChar(char){ ch = char.toLowerCase(); const arr = ['a','e','i','o','u'] if(arr.includes(ch)) return console.log("Given character is a Vowel"); return console.log("Given character is a Consonent"); } checkChar('E'); checkChar('J'); |
Given character is a Vowel Given character is a Consonent
Method 3: Using JavaScript regular expression
In this method, we will create a regular expression for the vowels and test if the given input char satisfy the regex condition.
Example: In this example, we will implement regex for the vowels and output the result.
Javascript
function checkChar(char){ ch = char.toLowerCase(); const regex = /^[aeiou]$/i; if(regex.test(ch)) return console.log("Given character is a Vowel"); return console.log("Given character is a Consonent"); } checkChar('I'); checkChar('Z'); |
Given character is a Vowel Given character is a Consonent
