@technobuddha/library/dist/group-code.js

A large library of useful functions

import { sortOrder } from "./sort-order.js";
import { toASCII } from "./to-ascii.js";
/**
 * Determine the group code (A-Z, [] or #) to place an item under
 * @remarks The group code is made by taking the first letter of the *description*.  As a special
 * case descriptions starting with '[' are grouped under [] and anything that isn't a letter is grouped
 * under #.
 * @param input - a description
 * @returns The group code
 * @group String
 * @category Analysis
 */
export function groupCode(input) {
    const group = toASCII(sortOrder(input).slice(0, 1)).toLocaleUpperCase();
    if (group >= 'A' && group <= 'Z') {
        return group;
    }
    else if (group === '[') {
        return '[]';
    }
    return '#';
}
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