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20220330_Vote/Ewide.Web.Entry/wwwroot/lib/xe-utils/assign.js

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+var arrayEach = require('./arrayEach')
+var keys = require('./keys')
+var isArray = require('./isArray')
+var clone = require('./clone')
+
+var objectAssignFns = Object.assign
+
+function handleAssign (destination, args, isClone) {
+  var len = args.length
+  for (var source, index = 1; index < len; index++) {
+    source = args[index]
+    arrayEach(keys(args[index]), isClone ? function (key) {
+      destination[key] = clone(source[key], isClone)
+    } : function (key) {
+      destination[key] = source[key]
+    })
+  }
+  return destination
+}
+
+/**
+  * 将一个或多个源对象复制到目标对象中
+  *
+  * @param {Object} target 目标对象
+  * @param {...Object}
+  * @return {Boolean}
+  */
+var assign = function (target) {
+  if (target) {
+    var args = arguments
+    if (target === true) {
+      if (args.length > 1) {
+        target = isArray(target[1]) ? [] : {}
+        return handleAssign(target, args, true)
+      }
+    } else {
+      return objectAssignFns ? objectAssignFns.apply(Object, args) : handleAssign(target, args)
+    }
+  }
+  return target
+}
+
+module.exports = assign