function trimLeft(str) {
if (typeof str !== 'string') {
throw new TypeError('Expected a string');
}
return str.replace(/^\s+/, '');
}
function trimRight(str) {
if (typeof str !== 'string') {
throw new TypeError('Expected a string');
}
return str.replace(/\s+$/, '');
}
let input = ' Hello, World! ';
let trimmedLeft = trimLeft(input);
console.log("'" + trimmedLeft + "'"); // Output: 'Hello, World! '
let trimmedRight = trimRight(input);
console.log("'" + trimmedRight + "'"); // Output: ' Hello, World!'
