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Naive implementation of lodash.get method
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| /** | |
| * @property {object} object - The object to query | |
| * @property {string} path - The path of the property to get | |
| * @property {object} fallback - The default value to return if no value found in path | |
| * @returns {*} Returns the resolved value (undefined / fallback value / value found). | |
| */ | |
| function get(object, path, fallback) { | |
| const dot = path.indexOf('.'); | |
| if (object === undefined) { | |
| return fallback || undefined; | |
| } | |
| if (dot === -1) { | |
| if (path.length && path in object) { | |
| return object[path]; | |
| } | |
| return fallback; | |
| } | |
| return get(object[path.substr(0, dot)], path.substr(dot + 1), fallback); | |
| } | |
| /* TESTS */ | |
| const object = { | |
| foo: { | |
| bar: 1 | |
| }, | |
| baz: 5, | |
| lor: ['mir', 'dal'] | |
| }; | |
| console.log(get(object, 'none.bar')); | |
| // => undefined | |
| console.log(get(object, 'none.bar', 'default')); | |
| // => 'default' | |
| console.log(get(object, 'baz')); | |
| // => 5 | |
| console.log(get(object, 'foo.bar')); | |
| // => 1 | |
| console.log(get(object, 'lor.1')); | |
| // => 'dal' |
@fvena-portfolio thanks! I'll fix it right away.
It is an old gist, I use instead a NPM package I created, called getv.
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Thanks a lot, great gist, but on line 18 you should return the fallback value as well.