1

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

@@ -0,0 +1,24 @@
+var slice = require('./slice')
+
+/**
+  * 创建一个函数, 调用次数不超过 count 次之前执行回调并将所有结果记住后返回
+  *
+  * @param {Number} count 调用次数
+  * @param {Function} callback 完成回调
+  * @return {Object}
+  */
+function before (count, callback, context) {
+  var runCount = 0
+  var rests = []
+  context = context || this
+  return function () {
+    var args = arguments
+    runCount++
+    if (runCount < count) {
+      rests.push(args[0])
+      callback.apply(context, [rests].concat(slice(args)))
+    }
+  }
+}
+
+module.exports = before