tiny-bin/dist/objects/utils.js

A library for building tiny and beautiful command line apps.

/* IMPORT */
import stripAnsi from 'ansi-purge';
import { toCamelCase } from 'kasi';
import levenshtein from 'tiny-levenshtein';
import parseArgv from 'tiny-parse-argv';
/* MAIN */
const castArray = (value) => {
    return Array.isArray(value) ? value : [value];
};
const getClosest = (values, value, maxDistance = 3, caseInsensitive = false) => {
    if (!values.length)
        return;
    const target = caseInsensitive ? value.toLowerCase() : value;
    const targets = caseInsensitive ? values.map(value => value.toLowerCase()) : values;
    const distances = targets.map(other => levenshtein(target, other));
    const minDistance = Math.min(...distances);
    if (minDistance > maxDistance)
        return;
    const minDistanceIndex = distances.indexOf(minDistance);
    const closest = values[minDistanceIndex];
    return closest;
};
const groupBy = (values, iterator) => {
    const groups = new Map();
    for (let i = 0, l = values.length; i < l; i++) {
        const value = values[i];
        const key = iterator(value, i, values);
        const group = groups.get(key) || [];
        group.push(value);
        groups.set(key, group);
    }
    return groups;
};
const identity = (value) => {
    return value;
};
const isArray = (value) => {
    return Array.isArray(value);
};
const isObject = (value) => {
    return typeof value === 'object' && value !== null;
};
const isUndefined = (value) => {
    return value === undefined;
};
const pushBack = (map, key) => {
    const value = map.get(key);
    if (isUndefined(value))
        return map; //TODO: Technically "undefined" could be a valid key here
    map.delete(key);
    map.set(key, value);
    return map;
};
const sum = (numbers) => {
    return numbers.reduce((acc, value) => acc + value, 0);
};
/* EXPORT */
export { castArray, getClosest, groupBy, identity, isArray, isObject, isUndefined, parseArgv, pushBack, stripAnsi, sum, toCamelCase };