| var baseAssignValue = require('./_baseAssignValue'), |
| eq = require('./eq'); |
| |
| /** Used for built-in method references. */ |
| var objectProto = Object.prototype; |
| |
| /** Used to check objects for own properties. */ |
| var hasOwnProperty = objectProto.hasOwnProperty; |
| |
| /** |
| * Assigns `value` to `key` of `object` if the existing value is not equivalent |
| * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| * for equality comparisons. |
| * |
| * @private |
| * @param {Object} object The object to modify. |
| * @param {string} key The key of the property to assign. |
| * @param {*} value The value to assign. |
| */ |
| function assignValue(object, key, value) { |
| var objValue = object[key]; |
| if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || |
| (value === undefined && !(key in object))) { |
| baseAssignValue(object, key, value); |
| } |
| } |
| |
| module.exports = assignValue; |