# stringUtils Module

`stringUtils` is a simple utility module that provides functions for common string operations. You can use these functions to manipulate and check strings easily. The module includes the following functions:

- **reverse**: Reverse a given string.
- **toUpperCase**: Convert a string to uppercase.
- **toLowerCase**: Convert a string to lowercase.
- **isPalindrome**: Check if a string is a palindrome (ignores non-alphanumeric characters and case).

## Installation

1. Install the module via npm:

```bash
npm install @raju0090/string-utilities
```

## Functions

### 1. `reverse(str)`
Reverses the given string.

**Parameters:**
- `str` (string): The string you want to reverse.

**Returns:**
- A new string with the characters reversed.

**Example:**
```js
const stringUtils = require('./stringUtils');
console.log(stringUtils.reverse("hello"));  // Output: "olleh"
```

### 2. `toUpperCase(str)`
Converts the given string to uppercase.

**Parameters:**
- `str` (string): The string you want to convert to uppercase.

**Returns:**
- A new string that is the uppercase version of the input string.

**Example:**
```js
console.log(stringUtils.toUpperCase("hello"));  // Output: "HELLO"
```

### 3. `toLowerCase(str)`
Converts the given string to lowercase.

**Parameters:**
- `str` (string): The string you want to convert to lowercase.

**Returns:**
- A new string that is the lowercase version of the input string.

**Example:**
```js
console.log(stringUtils.toLowerCase("HELLO"));  // Output: "hello"
```

### 4. `isPalindrome(str)`
Checks if a string is a palindrome, ignoring spaces, punctuation, and case.

**Parameters:**
- `str` (string): The string you want to check for being a palindrome.

**Returns:**
- `true` if the string is a palindrome, otherwise `false`.

**Example:**
```js
console.log(stringUtils.isPalindrome("A man, a plan, a canal, Panama"));  // Output: true
console.log(stringUtils.isPalindrome("hello"));  // Output: false
```

## Example Usage

```js
const stringUtils = require('./stringUtils');

console.log(stringUtils.reverse("hello"));  // Output: "olleh"
console.log(stringUtils.toUpperCase("hello"));  // Output: "HELLO"
console.log(stringUtils.toLowerCase("HELLO"));  // Output: "hello"
console.log(stringUtils.isPalindrome("A man, a plan, a canal, Panama"));  // Output: true
console.log(stringUtils.isPalindrome("hello"));  // Output: false
```