vue.runtime.esm.js:1888 TypeError: callback is not a function at checkCode (index.vue?76f2:171) at Object.checkCode [as validator] (index.vue?76f2:173) at index.js:216 at next (util.js:114) at asyncSerialArray (util.js:120) at util.js:154 at Array.forEach (<anonymous>) at ...
则程序报错如下: `TypeError: callback is not a function at validateuser (index.vue?0dbc:132) at VueComponent.data (index.vue?0dbc:186) at getData (vue.esm.js?efeb:4751) at initData (vue.esm.js?efeb:4708) at initState (vue.esm.js?efeb:4645) at VueComponent.Vue._init (vue.esm.js...
现在问题就是，你往 getUser() 传入的 callback 不是一个方法（函数），即 callback 不是 function ...
Bug Report Current behavior I'm using WebSocketGateway with redis-io adapter. I'm trying to broadcast a message to all clients that are connected to a room, and I get this exception: TypeError: callback is not a function [0] at Encoder.e...
问完成writeStream时出现"callback is not a function“错误EN在创建销售订单时，保存之后，出现如下显示...
问出现错误"callback is not a function“EN早上闲来无事，在cpanel后台转悠，看到了hotlink保护，想想是...
JS Api 里这样解释:A callback is a function that is passed as an argument to another function and is executed after its parent function has completed. 当然我们可以在JS当中来真正尝试一下回调函数的神奇。 如果你直接在函数a里调用的话,那么这个回调函数就被限制死了。但是使用函数做参数就有下面的好处...
A callback is a function that is passed as an argument to another function and is executed after its parent function has completed。 一个回调是一个函数被传递一个参数到另外一个函数,被执行在主函数完成后 node2:/var/www/html/js#cat h41.html<script>//定义主函数,回调函数作为参数functionA(call...
如果对callback没有一个清楚的理解,估计你在学习Node.js后会崩溃,因为callback是Node.js三大核心之一。 一、回调函数 回调函数的概念 A callback is a function that is passed as an argument to another function and is executedafter its parent function has completed. 以上是Google的解释,非常清晰简明,小编...
将会是我们在上面定义的genericPoemMaker函数 function getUserInput(firstName, lastName, gender, callback) { var fullName = firstName + " " + lastName; // Make sure the callback is a function if (typeof callback === "function") { // Execute the callback function and pass the ...