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I have an issue, where by I am doing a simple form validation, that needs some custom stuff that the validation plugin could not do for me. Basically, I have a name, email and message field, all are required, but only email is really validated, the others just need to check if theyre not empty. Here is my current code: $("#contactMe form").submit(function() { var email = $('.requiredEmail').val(); if(email != 0) { if(isValidEmailAddress(email)) { $('.requiredText').each(function() { thisVal = $(this).val(); var $this = $(this); if(thisVal != 0) { console.log('Valid Field: '+thisVal); if ($

R语言--rep函数 基础用法和参数 版权声明：本文为CSDN博主「Kalinda_yu」的原创文章，遵循CC 4.0 by-sa版权协议，转载请附上原文出处链接及本声明。 原文链接：https://blog.csdn.net/weixin_40832274/article/details/83443060 基础用法和参数 rep(x,…):将vcector x的值循环n遍 rep(1:4,2) [1] 1 2 3 4 1 2 3 4 … ：除了x的其他参数，可以通过*…* 传到其他方法里 times:整个数组循环几遍 rep(1:4,each=3,times = 3) [1] 1 1 2 2 3 3 4 4 1 1 2 2 3 3 4 4 1 1 2 2 3 3 4 4 each:每个element循环几遍 rep(1:4,each=2) [1] 1 1 2 2 3 3 4 4 rep(1:4,c(2,2,2,2)) [1] 1 1 2 2 3 3 4 4 rep(1:4,c(2,1,2,1)) [1] 1 1 2 3 3 4 length.out 输出长度为多少 rep(1:4, each = 2, len = 4) [1] 1 1 2 2 长了会被截掉 rep(1:4, each = 2, len = 13) [1] 1 1 2 2 3 3 4 4 1 1 2 2 3

I have 3 processes that needs ajax to complete. But it is asynchronous and it fails to do what I wanted to do.. Lets say: function a(param1, param2) { $.post(..., function(result){ if(result){ b(); } else { console.log("failed a"); } }) } function b() { $.post(..., function(result){ if(result){ c(); } else { console.log("failed b"); } }) } function c() { $.post(..., function(result){ if(result){ console.log("successful"); } else { console.log("failed b"); } }) } I want it to execute like this a b c That code will work perfectly, as you can see.. but if use a loop. var data = [{param1 : 1235,

This might seem a silly question but I can't seem to find the answer anywhere. I'm hitting this Web Api that returns an array of objects in JSON format: Handlebars docs shows the following example: <ul class="people_list"> {{#each people}} <li>{{this}}</li> {{/each}} </ul> in the context of: { people: [ "Yehuda Katz", "Alan Johnson", "Charles Jolley" ] } In my case I don't have a name for the array, it's just the root object of the response. I've tried using {{#each}} with no luck. First time using Handlebars... what am I missing? UPDATE Here's a simplified fiddle to show what I'm asking: http

I have a handlebars.js template, just like this: {{externalValue}} <select name="test"> {{#each myCollection}} <option value="{{id}}">{{title}} {{externalValue}}</option> {{/each}} </select> And this is the generated output: myExternalValue <select name="test"> <option value="1">First element </option> <option value="2">Second element </option> <option value="3">Third element </option> </select> As expected, I can access the id and title fields of every element of myCollection to generate my select. And outside the select, my externalValue variable is correctly printed ("myExternalValue").

A. Drinks Choosing time limit per test:2 seconds memory limit per test:256 megabytes input:standard input output:standard output Old timers of Summer Informatics School can remember previous camps in which each student was given a drink of his choice on the vechorka (late-evening meal). Or may be the story was more complicated? There are n n students living in a building, and for each of them the favorite drink a i ai is known. So you know n n integers a 1 , a 2 , … , a n a1,a2,…,an, where a i ai ( 1 ≤ a i ≤ k 1≤ai≤k) is the type of the favorite drink of the i i-th student. The drink types are

Thymeleaf3语法详解 Thymeleaf是Spring boot推荐使用的模版引擎，除此之外常见的还有Freemarker和Jsp。Jsp应该是我们最早接触的模版引擎。而Freemarker工作中也很常见（ Freemarker教程 ）。今天我们从三个方面学习Thymeleaf的语法：有常见的TH属性，四种标准表达式用法，在SpringBoot中的应用。还在等什么，一起来学吧！ 技术：Thymeleaf，SpringBoot 说明：为突出Thymeleaf3的语法知识，文章只提出与Thymeleaf有关的代码，完整代码请异步github，喜欢的朋友可以点个star，蟹蟹！ 源码：https://github.com/ITDragonBlog/daydayup/tree/master/Thymeleaf/spring-boot-thymeleaf 好文推荐： http://www.cnblogs.com/itdragon/p/8709948.html 文章目录结构： 一、th属性 常用th属性解读 html有的属性，Thymeleaf基本都有，而常用的属性大概有七八个。其中th属性执行的优先级从1~8，数字越低优先级越高。 一、 th:text ：设置当前元素的文本内容，相同功能的还有 th:utext ，两者的区别在于前者不会转义html标签，后者会。优先级不高：order