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Check if field name is in a cyclic object map
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| /** | |
| * @description check if field name is in a cyclic object map | |
| * @author Wallace Ferreira <https://github.com/wallace-sf> | |
| * @example | |
| * ```js | |
| * var mapA = { | |
| * a: ['b', 'c', 'd', 'e'], | |
| * b: ['c', 'd'], | |
| * c: ['d'], | |
| * d: ['f', 'a'], | |
| * } | |
| * | |
| * var mapB = { | |
| * a: ['b', 'c', 'd', 'e'], | |
| * b: ['c', 'd'], | |
| * c: ['d'], | |
| * d: ['f', 'k'], | |
| * } | |
| * | |
| * isCyclic('b', mapA); | |
| * => true | |
| * | |
| * isCyclic('b', mapB); | |
| *=> false | |
| * ``` | |
| * @param {string} fieldName | |
| * @param {object} ObjectMap | |
| * @param {string[]} mapKeys | |
| * @returns {boolean} | |
| */ | |
| const isCyclic = (fieldName = '', objectMap = {}, mapKeys = []) => { | |
| const currentMapKeys = [...mapKeys]; | |
| const currentMapValue = get(objectMap, fieldName, []); | |
| if (currentMapKeys.includes(fieldName)) return true; | |
| currentMapKeys.push(fieldName); | |
| return currentMapValue.some((currentKey) => { | |
| return isCyclic(currentKey, objectMap, currentMapKeys); | |
| }); | |
| }; |
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line 33, get function is from lodash