aaac7fed
 liuqimichale
add
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"use strict";
var includes = require("../array/#/contains")
, uniq = require("../array/#/uniq")
, copyDeep = require("./copy-deep")
, objForEach = require("./for-each")
, isPlainObject = require("./is-plain-object")
, ensureValue = require("./valid-value");
var isArray = Array.isArray, slice = Array.prototype.slice;
var deepAssign = function (target, source) {
if (target === source) return target;
if (isPlainObject(target) && isPlainObject(source)) {
objForEach(source, function (value, key) { target[key] = deepAssign(target[key], value); });
return target;
}
if (isArray(target) && isArray(source)) {
source.forEach(function (item) {
if (includes.call(target, item)) return;
if (isArray(item) || isPlainObject(item)) item = copyDeep(item);
target.push(item);
});
return target;
}
if (isPlainObject(source) || isArray(source)) return copyDeep(source);
return source;
};
module.exports = function (target/*, ...objects*/) {
return uniq
.call([ensureValue(target)].concat(slice.call(arguments, 1).map(ensureValue)))
.reduce(deepAssign);
};
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