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getRelativePath util for lodash `get` function
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| /** | |
| * @param {string} [path=''] | |
| * @return {boolean} | |
| * @author Wallace Ferreira <https://github.com/wallace-sf> | |
| * @example | |
| * isRelativePath('.') | |
| * => true | |
| * isRelativePath('..') | |
| * => true | |
| * isRelativePath('a...') | |
| * => false | |
| * isRelativePath('...c') | |
| * => false | |
| * isRelativePath('a...c') | |
| * => false | |
| */ | |
| const isRelativePath = (path = '') => { | |
| return /^(([.](?=\.))?(\.)+)$/g.test(path); | |
| }; | |
| /** | |
| * @description Get a parent path from child path (e.g., `address.street` with part | |
| * `..` should return `address`). | |
| * @param {string} path | |
| * @param {...string} parts | |
| * @return {string} parentPath | |
| * @author Wallace Ferreira <https://github.com/wallace-sf> | |
| * @example | |
| * getParentPath('car.model', 'brand', 'name) | |
| * => 'car.model.brand.name' | |
| * getParentPath('car.model', '.', 'brand', 'name') | |
| * => 'car.model.brand.name' | |
| * getParentPath('car.model', '..', 'brand', 'name') | |
| * => 'car.brand.name' | |
| * getParentPath('car.model', '...', 'brand', 'name') | |
| * => 'brand.name' | |
| * getRelativePath('car.model', '.', 'brand', 'name', '..') | |
| * => 'car.model.brand' | |
| * getParentPath('car.model', '...') | |
| * => '' | |
| */ | |
| export const getRelativePath = (path = '', ...parts) => { | |
| return parts | |
| .reduce((acc, part) => { | |
| if (isRelativePath(part)) { | |
| const endIndexNewPath = acc.length - (part.length - 1); | |
| return acc.slice(0, endIndexNewPath > 0 ? endIndexNewPath : 0); | |
| } | |
| return [...acc, part]; | |
| }, path.split('.')) | |
| .join('.'); | |
| }; |
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