@churchapps/apphelper/dist/helpers/ArrayHelper.js

Library of helper functions for React and NextJS ChurchApps

import { UniqueIdHelper } from "./UniqueIdHelper";
export class ArrayHelper {
    static getIds(array, propertyName) {
        const result = [];
        for (const item of array) {
            const id = item[propertyName]?.toString();
            if (!UniqueIdHelper.isMissing(id) && result.indexOf(id) === -1)
                result.push(id);
        }
        return result;
    }
    static sortBy(array, propertyName, descending = false) {
        array.sort((a, b) => {
            const valA = a[propertyName];
            const valB = b[propertyName];
            if (valA < valB)
                return descending ? 1 : -1;
            else
                return descending ? -1 : 1;
        });
    }
    static getIndex(array, propertyName, value) {
        for (let i = 0; i < array.length; i++) {
            const item = array[i];
            if (ArrayHelper.compare(item, propertyName, value))
                return i;
        }
        return -1;
    }
    static getOne(array, propertyName, value) {
        for (const item of array || [])
            if (ArrayHelper.compare(item, propertyName, value))
                return item;
        return null;
    }
    static getAll(array, propertyName, value) {
        const result = [];
        for (const item of array || []) {
            if (ArrayHelper.compare(item, propertyName, value))
                result.push(item);
        }
        return result;
    }
    static getAllArray(array, propertyName, values) {
        const result = [];
        for (const item of array || [])
            if (values.indexOf(item[propertyName]) > -1)
                result.push(item);
        return result;
    }
    static getAllContaining(array, propertyName, value) {
        const result = [];
        for (const item of array)
            if (item[propertyName].toString().toLowerCase().indexOf(value.toLowerCase()) > -1)
                result.push(item);
        return result;
    }
    static compare(item, propertyName, value) {
        const propChain = propertyName.split(".");
        if (propChain.length === 1)
            return item[propertyName] === value;
        else {
            let obj = item;
            for (let i = 0; i < propChain.length - 1; i++) {
                if (obj)
                    obj = obj[propChain[i]];
            }
            return obj[propChain[propChain.length - 1]] === value;
        }
    }
    static getUniqueValues(array, propertyName) {
        const result = [];
        for (const item of array) {
            const val = (propertyName.indexOf(".") === -1) ? item[propertyName] : this.getDeepValue(item, propertyName);
            if (result.indexOf(val) === -1)
                result.push(val);
        }
        return result;
    }
    static getDeepValue(item, propertyName) {
        const propertyNames = propertyName.split(".");
        let result = item;
        propertyNames.forEach(name => {
            result = result[name];
        });
        return result;
    }
}
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