@lit-labs/gen-utils/lib/str-utils.js

Utilities for lit code generators

/**
 * @license
 * Copyright 2022 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
/**
 * Generic tagged-template literal string concatenator with array value
 * flattening. Can be assigned to various tag names for syntax highlighting.
 */
const concat = (strings, ...values) => values.reduce((acc, v, i) => acc + (Array.isArray(v) ? v.flat(Infinity).join('') : v) + strings[i + 1], strings[0]);
/**
 * Use https://marketplace.visualstudio.com/items?itemName=zjcompt.es6-string-javascript
 * for JS syntax highlighting
 */
export const javascript = concat;
/**
 * Use https://marketplace.visualstudio.com/items?itemName=Tobermory.es6-string-html
 * for HTML syntax highlighting
 */
export const html = concat;
/**
 * Converts string to initial cap.
 */
export const toInitialCap = (str) => str ? `${str[0].toUpperCase()}${str.slice(1)}` : str;
/**
 * Converts kabob-case string to PascalCase.
 */
export const kabobToPascalCase = (str) => toInitialCap(str).replace(/-[a-z]/g, (m) => m[1].toUpperCase());
/**
 * Converts kabob-case event name to an "on" event: `onEventName`.
 */
export const kabobToOnEvent = (str) => `on${kabobToPascalCase(str)}`;
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