A focused, zero-dependency utility library for common string manipulations in JavaScript. Clean API, no global prototype pollution, and built for real-world use.
npm install @herb-ert/stringkitjsbash
npm install @herb-ert/stringkitjs
`
If you're using ES Modules:
`js
import * as stringkit from '@herb-ert/stringkitjs';
`
Or with CommonJS:
`js
const stringkit = require('@herb-ert/stringkitjs');
`
🚀 Usage
`js
import { capitalize, kebabCase } from '@herb-ert/stringkitjs';
console.log(capitalize("hello world")); // "Hello world"
console.log(kebabCase("Hello World")); // "hello-world"
`
🧠 API
$3
| Method | Description |
|------------------------|------------------------------------------------------------------------------------------------------------------|
| capitalize(string) | Capitalizes the first character of a string. |
| title(string, smart) | Converts a string to title case. Optionally applies smart title casing to avoid capitalizing common short words. |
| stripTags(string) | Removes all HTML tags from a string. |
| slugify(string) | Converts a string into a URL-friendly slug. |
| truncate(string, length) | Truncates a string to a specific length, appending "..." if truncated. |
| camelCase(string) | Converts a string to camelCase. |
| kebabCase(string) | Converts a string to kebab-case. |
| snakeCase(string) | Converts a string to snake_case. |
| trimLines(string) | Trims whitespace from the start and end of each line in a multi-line string. |
| removeExtraSpaces(string) | Removes extra spaces from a string, reducing multiple spaces to a single space. |
| isBlank(string) | Checks whether a string is empty or contains only whitespace. |
| startsWithIgnoreCase(string, prefix) | Checks if a string starts with a given prefix, ignoring case sensitivity. |
| endsWithIgnoreCase(string, suffix) | Checks if a string ends with a given suffix, ignoring case sensitivity.|
| includesIgnoreCase(string, substring) | Checks if a string includes a given substring, ignoring case sensitivity.|
| escapeRegExp(string) | Escapes special characters in a string for use in a regular expression.|
| stripAnsi(string) | Removes ANSI escape codes from a string.|
| repeatString(string, times) | Repeats a string a specified number of times.|
| commonPrefix(strings) | Finds the longest common prefix among an array of strings.|
| center(string, length, char = ' ') | Centers a string by padding it on both sides with a specified character.|
| lpad(string, length, char = ' ') | Pads the left side of a string to a specified total length.|
| rpad(string, length, char = ' ') | Pads the right side of a string to a specified total length.|
| truncateWords(string, wordCount) | Truncates a string to a specific number of words.|
| pascalCase(string) | Converts a string to PascalCase.|
| reverse(string) | Reverses the characters in a string.|
| assertString(value, name) | Asserts that the given value is a string. |
📦 More Examples
`js
import {
snakeCase,
stripTags,
title,
startsWithIgnoreCase
} from '@herb-ert/stringkitjs';
console.log(snakeCase("Hello World")); // "hello_world"
console.log(stripTags("Hello
")); // "Hello"
console.log(title("the big brown fox")); // "The Big Brown Fox"
console.log(startsWithIgnoreCase("JavaScript", "java")); // true
`
🧪 Validation
All functions are pure and expect valid strings. Invalid types will throw helpful errors.
`js
capitalize(42); // ❌ TypeError: Expected "string" to be a string, but got number
``