json-schema-describes-subset/dist/utils/array/array.js

Tools for static JSON schema analysis, including functions to determine if one schema describes a subset of another or if a schema describes the empty set or to convert a schema to its disjunctive normal form (DNF).

import findIndex from 'lodash/findIndex.js';
export function createSameElementsArray(length, elementValue) {
    return Array.from({ length }).map(() => elementValue);
}
export function splitArray(array, predicate, options = {}) {
    let currentGroup = [];
    const result = [currentGroup];
    for (const element of array) {
        if (predicate(element)) {
            if (options.includeSplitterElement === 'suffix') {
                currentGroup.push(element);
            }
            currentGroup = [];
            if (options.includeSplitterElement === 'prefix') {
                currentGroup.push(element);
            }
            result.push(currentGroup);
        }
        else {
            currentGroup.push(element);
        }
    }
    return result;
}
export function getElementsBetween(array, startPredicate, endPredicate) {
    const startIndex = findIndex(array, startPredicate) + 1;
    if (startIndex === 0) {
        return [];
    }
    const endIndex = findIndex(array, endPredicate, startIndex + 1);
    if (endIndex < 0) {
        return [array.slice(startIndex)];
    }
    return [
        array.slice(startIndex, endIndex),
        ...getElementsBetween(array.slice(endIndex + 1), startPredicate, endPredicate),
    ];
}
export function forEachInRange(array, { start = 0, end = array.length, step = 1, }, callbackFn) {
    for (let i = Math.max(0, start); i < Math.min(array.length, end); i += step) {
        callbackFn(array[i], i, array);
    }
}
export function forEachElementCombination(array, callbackFn) {
    forEachInRange(array, { start: 1 }, (elementA, indexA) => {
        forEachInRange(array, { end: indexA }, (elementB, indexB) => {
            callbackFn(elementA, elementB, indexA, indexB, array);
        });
    });
}
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