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Convert string case

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Identifiers, file names, CSS classes, and database columns all expect different casing conventions. The @std/text package converts between them from a single input, splitting words on spaces, dashes, underscores, and existing case boundaries.

import {
  toCamelCase,
  toKebabCase,
  toPascalCase,
  toSnakeCase,
} from "jsr:@std/text";
The same phrase rendered in the four common identifier styles.
const input = "shopping cart total";

console.log(toCamelCase(input)); // shoppingCartTotal
console.log(toKebabCase(input)); // shopping-cart-total
console.log(toSnakeCase(input)); // shopping_cart_total
console.log(toPascalCase(input)); // ShoppingCartTotal
The converters also understand input that is already cased, so they can translate one convention into another.
console.log(toSnakeCase("getUserById")); // get_user_by_id
console.log(toKebabCase("HTTPServerError")); // http-server-error
Sentence case and title case ship as unstable submodules, so their import paths carry an unstable- prefix until they stabilize.
import { toSentenceCase } from "jsr:@std/text/unstable-to-sentence-case";
import { toTitleCase } from "jsr:@std/text/unstable-to-title-case";

console.log(toSentenceCase("shopping cart total")); // Shopping cart total
console.log(toTitleCase("shopping cart total")); // Shopping Cart Total

Run this example locally using the Deno CLI:

deno run https://docs.deno.com/examples/scripts/string_case.ts

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