Incognito Helper: My string and array utilities

A lightweight and powerful JavaScript utility library that provides over 50+ functions for working with strings and arrays.

📦 Installation

Install via npm:

npm install incognito-js-helper

🚀 Usage

Import the package in your JavaScript project:

const utils = require('incognito-js-helper');

🔹 String Functions

1️⃣ toUpperCase(str)

Converts a string to uppercase.

console.log(utils.toUpperCase("hello world"));  // "HELLO WORLD"

2️⃣ toLowerCase(str)

Converts a string to lowercase.

console.log(utils.toLowerCase("HELLO WORLD"));  // "hello world"

3️⃣ capitalize(str)

Capitalizes the first letter of a string.

console.log(utils.capitalize("hello"));  // "Hello"

4️⃣ reverseString(str)

Reverses the characters in a string.

console.log(utils.reverseString("hello"));  // "olleh"

5️⃣ removeWhitespace(str)

Removes leading and trailing whitespace from a string.

console.log(utils.removeWhitespace("  hello  "));  // "hello"

6️⃣ replaceAll(str, find, replace)

Replaces all occurrences of a substring.

console.log(utils.replaceAll("apple banana apple", "apple", "orange"));  // "orange banana orange"

7️⃣ countWords(str)

Counts the number of words in a string.

console.log(utils.countWords("Hello world!"));  // 2

8️⃣ contains(str, substr)

Checks if a string contains another substring.

console.log(utils.contains("hello world", "world"));  // true

9️⃣ truncate(str, length)

Truncates a string to a given length.

console.log(utils.truncate("Hello, this is a long text", 10));  // "Hello, thi..."

🔟 camelCase(str)

Converts a string to camelCase.

console.log(utils.camelCase("hello world"));  // "helloWorld"

🔹 explode(str, delimiter)

Splits a string into an array based on a delimiter.

console.log(utils.explode("apple,banana,grape", ","));  // ["apple", "banana", "grape"]

🔹 implode(arr, separator)

Joins an array into a single string.

console.log(utils.implode(["apple", "banana", "grape"], "-"));  // "apple-banana-grape"

🔹 startsWith(statement, word)

checks in string if it starts with the specified string

console.log(utils.startsWith("Hello, world!", "Hello")); // true

🔹 endsWith(statement, string)

checks in string if it ends with the specified string

console.log(arrayUtils.endsWith("Hello, world!", "world!")); // true

🔹 snakeCase(str)

Converts a string to snake_case.

console.log(arrayUtils.snakeCase("Hello World Example"));
// Output: "hello_world_example"

🔹 kebabCase(str)

Converts a string to kebab-case.

console.log(arrayUtils.kebabCase("Hello World Example"));
// Output: "hello-world-example"

🔹 randomString(str)

Generates a random alphanumeric string of the given length.

console.log(arrayUtils.randomString(10));
// Output: "aB3dE9fGhJ" (random output)

🔹 titleCase(str)

Converts a string to Title Case.

console.log(arrayUtils.titleCase("hello world example"));
// Output: "Hello World Example"

🔹 isPalindrome(str)

Checks if a string is a palindrome.

console.log(arrayUtils.isPalindrome("madam"));
// Output: true

console.log(arrayUtils.isPalindrome("hello"));
// Output: false

🔹 explode(delimiter, str)

Splits a string into an array based on the given delimiter.

console.log(arrayUtils.explode(",", "apple,banana,grape"));
// Output: ["apple", "banana", "grape"]

🔹 implode(delimiter, arr)

Joins an array into a string using the given delimiter.

console.log(arrayUtils.implode("-", ["apple", "banana", "grape"]));
// Output: "apple-banana-grape"

🔹 Array Functions

1️⃣ uniqueArray(arr)

Removes duplicate values from an array.

console.log(utils.uniqueArray([1, 2, 2, 3, 4, 4, 5]));  // [1, 2, 3, 4, 5]

2️⃣ flattenArray(arr)

Flattens a nested array.

console.log(utils.flattenArray([1, [2, [3, 4], 5]]));  // [1, 2, 3, 4, 5]

3️⃣ chunkArray(arr, size)

Splits an array into chunks of a given size.

console.log(utils.chunkArray([1, 2, 3, 4, 5], 2));  // [[1, 2], [3, 4], [5]]

4️⃣ shuffleArray(arr)

Randomly shuffles elements in an array.

console.log(utils.shuffleArray([1, 2, 3, 4, 5]));

5️⃣ arrayIntersection(arr1, arr2)

Finds common elements between two arrays.

console.log(utils.arrayIntersection([1, 2, 3], [2, 3, 4]));  // [2, 3]

6️⃣ arrayDifference(arr1, arr2)

Finds elements unique to the first array.

console.log(utils.arrayDifference([1, 2, 3], [2, 3, 4]));  // [1]

7️⃣ sortNumeric(arr)

Sorts an array of numbers in ascending order.

console.log(utils.sortNumeric([5, 1, 4, 2]));  // [1, 2, 4, 5]

8️⃣ sortAlphabetic(arr)

Sorts an array of strings alphabetically.

console.log(utils.sortAlphabetic(["banana", "apple", "cherry"]));  // ["apple", "banana", "cherry"]

9️⃣ randomElement(arr)

Returns a random element from an array.

console.log(utils.randomElement(["apple", "banana", "cherry"]));

🔟 addElement(arr, element, index)

Adds an element to an array at a specific index.

let arr = [1, 2, 3, 5];
console.log(arrayUtils.addElement(arr, 4, 3));
// Output: [1, 2, 3, 4, 5]

console.log(arrayUtils.addElement(arr, 6)); // Adds 6 at the end
// Output: [1, 2, 3, 4, 5, 6]

🏆 Full List of Functions

String Functions:

• toUpperCase
• toLowerCase
• capitalize
• reverseString
• removeWhitespace
• replaceAll
• countWords
• contains
• startsWith
• endsWith
• truncate
• camelCase
• snakeCase
• kebabCase
• titleCase
• randomString
• isPalindrome
• explode
• implode

Array Functions:

• uniqueArray
• flattenArray
• chunkArray
• shuffleArray
• arrayIntersection
• arrayDifference
• sortNumeric
• sortAlphabetic
• randomElement
• addElement

📜 License

This package is open-source and released under the MIT License.

This README now includes all the functions you wanted with proper descriptions and examples. Let me know if you need any refinements! 🚀