@grandom/shuffle/RandomShuffle/RandomStringShuffle/ExcludeFilter/index.js

A configurable, flexible, seedable, and overall great random shuffler.

'use strict';

class ExcludeFilter {
    constructor(exclude) {
        this._filterEntries = [];
        if ((typeof exclude !== 'string' && typeof exclude !== 'object') || exclude === null) {
            throw new TypeError('Filter must be a string, RegExp, or Array<string | RegExp>, got: ' +
                // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
                `${exclude} (typeof === '${typeof exclude}').`);
        }
        const filters = Array.isArray(exclude)
            ? exclude
            : [exclude];
        let i = 0;
        for (const filter of filters) {
            if (typeof filter === 'string') {
                this._filterEntries.push({ string: filter });
            }
            else if (filter instanceof RegExp) {
                this._filterEntries.push({ regexp: filter });
            }
            else {
                throw new TypeError(`Filter[${i}] must be a string, or a RegExp, got: ` +
                    // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
                    `${filter} (typeof === '${typeof filter}').`);
            }
            i++;
        }
    }
    get numFilters() {
        return this._filterEntries.length;
    }
    matches(value) {
        for (const filterEntry of this._filterEntries) {
            if (value === filterEntry.string) {
                return true;
            }
            if (filterEntry.regexp?.test(value) === true) {
                return true;
            }
        }
        return false;
    }
}

module.exports = ExcludeFilter;
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