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

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+var map = require('./map')
+
+var isArray = require('./isArray')
+
+function deepGetObj (obj, path) {
+  var index = 0
+  var len = path.length
+  while (obj && index < len) {
+    obj = obj[path[index++]]
+  }
+  return len && obj ? obj : 0
+}
+
+/**
+ * 在list的每个元素上执行方法,任何传递的额外参数都会在调用方法的时候传递给它
+ *
+ * @param {Array} list
+ * @param {Array/String/Function} path
+ * @param {...Object} arguments
+ * @return {Array}
+ */
+function invoke (list, path) {
+  var func
+  var args = arguments
+  var params = []
+  var paths = []
+  var index = 2
+  var len = args.length
+  for (; index < len; index++) {
+    params.push(args[index])
+  }
+  if (isArray(path)) {
+    len = path.length - 1
+    for (index = 0; index < len; index++) {
+      paths.push(path[index])
+    }
+    path = path[len]
+  }
+  return map(list, function (context) {
+    if (paths.length) {
+      context = deepGetObj(context, paths)
+    }
+    func = context[path] || path
+    if (func && func.apply) {
+      return func.apply(context, params)
+    }
+  })
+}
+
+module.exports = invoke