@bemedev/types/lib/functions/arrays.js

Type definitions for Bemedev projects

import { expandFn, _unknown } from '../utils.js';

const arrays = expandFn((...values) => values, {
    low: (...values) => values,
    is: (value) => {
        return Array.isArray(value);
    },
    indexes: (...array) => {
        const out = array.map((_, index) => index);
        return _unknown(out);
    },
    lengthOf: (...array) => {
        const out = array.length;
        return _unknown(out);
    },
    tupleOf: expandFn((...args) => {
        const out = args;
        return _unknown(out);
    }, {
        number: expandFn((data, times) => {
            const out = Array.from({ length: times }, () => data);
            return _unknown(out);
        }, {
            is: (fn) => {
                const _out = (value, length) => {
                    const isArray = Array.isArray(value);
                    const out = isArray && value.length === length && value.every(fn);
                    return out;
                };
                return _out;
            },
        }),
        is: (fn) => {
            const _out = (value) => {
                return Array.isArray(value) && value.every(fn);
            };
            return _out;
        },
    }),
    reduce: (value) => {
        const out = Array.isArray(value) ? value[0] : value;
        return _unknown(out);
    },
    toArray: (value) => {
        const checkArray = Array.isArray(value);
        const out = checkArray ? value : [value];
        return _unknown(out);
    },
    reverse: (...args) => {
        const out = args.slice().reverse();
        return _unknown(out);
    },
    freeze: (...args) => Object.freeze(arrays.tupleOf(...args)),
    extract: (array, ...extractors) => {
        const out = array.filter(item => extractors.includes(item));
        return _unknown(out);
    },
    exclude: (array, ...excludes) => {
        const out = array.filter(item => !excludes.includes(item));
        return _unknown(out);
    },
    forceCast: (value) => {
        return _unknown(value);
    },
    dynamic: (value) => {
        return _unknown(value);
    },
    type: Array,
});

export { arrays };
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