56 lines
1.2 KiB
JavaScript
56 lines
1.2 KiB
JavaScript
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/*!
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* set-value <https://github.com/jonschlinkert/set-value>
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*
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* Copyright (c) 2014-2015, 2017, Jon Schlinkert.
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* Released under the MIT License.
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*/
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'use strict';
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var split = require('split-string');
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var extend = require('extend-shallow');
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var isPlainObject = require('is-plain-object');
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var isObject = require('is-extendable');
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module.exports = function(obj, prop, val) {
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if (!isObject(obj)) {
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return obj;
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}
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if (Array.isArray(prop)) {
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prop = [].concat.apply([], prop).join('.');
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}
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if (typeof prop !== 'string') {
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return obj;
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}
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var keys = split(prop, {sep: '.', brackets: true}).filter(isValidKey);
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var len = keys.length;
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var idx = -1;
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var current = obj;
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while (++idx < len) {
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var key = keys[idx];
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if (idx !== len - 1) {
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if (!isObject(current[key])) {
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current[key] = {};
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}
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current = current[key];
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continue;
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}
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if (isPlainObject(current[key]) && isPlainObject(val)) {
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current[key] = extend({}, current[key], val);
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} else {
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current[key] = val;
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}
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}
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return obj;
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};
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function isValidKey(key) {
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return key !== '__proto__' && key !== 'constructor' && key !== 'prototype';
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}
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