How to Validate an Input is Alphanumeric or not using JavaScript?

let input = "validate1234@"; 

// Function to validate alphanumeric input
function validateFunc(input) {
    let val = input.trim(); 
    let RegEx = /^[a-z0-9]+$/i; 
    let Valid = RegEx.test(val);
    
    if (Valid) {
        console.log("The input is valid and alphanumeric.");
    } else {
        console.log("The input is invalid. Only alphanumeric characters are allowed.");
    }
}

validateFunc(input);

let inputValue = "Validate123";

// Function to validate if the input is alphanumeric
function validateFunc(input) {
    let val = input.trim(); 
    let isValid = /^[a-z0-9]+$/i.test(val);
    console.log(isValid ? "Valid alphanumeric input." : "Invalid input.");
}

validateFunc(inputValue);