snakeCase

Converts text from common word boundaries into lowercase snake case.

Code

snakeCase.ts

const words = (value: string): string[] => {
  return value
    .replace(/([\p{Ll}\d])(\p{Lu}(?=\p{Ll}))/gu, "$1 $2")
    .replace(/(\p{Lu}+)(\p{Lu}\p{Ll})/gu, "$1 $2")
    .match(/[\p{L}\p{N}]+/gu) ?? [];
};

/** Converts text from common word boundaries into lowercase snake case. */
export const snakeCase = (value: string): string => {
  return words(value).map((word) => word.toLocaleLowerCase()).join("_");
};

Download

wget

Terminal

wget -O src/lib/snakeCase.ts https://raw.githubusercontent.com/jrTilak/lazykit/HEAD/registry/functions/snakeCase.ts

degit

Terminal

temp_dir="$(mktemp -d)" && bunx degit jrTilak/lazykit/registry/functions "$temp_dir" && mv "$temp_dir/snakeCase.ts" src/lib/snakeCase.ts && rm -r "$temp_dir"

Examples

snakeCase.example.ts

import { snakeCase } from "./snakeCase";

const column = snakeCase("createdAt value");
// "created_at_value"

Props

• value (string) — Text containing common word boundaries.
• Returns lowercase words separated by underscores.