firstname

介绍 JSON

做~自己de王妃 提交于 2020-03-03 09:56:47
JSON (JavaScript Object Notation) 是一种轻量级的数据交换格式。易于人阅读和编写。同时也易于机器解析和生成。它基于 JavaScript Programming Language , Standard ECMA-262 3rd Edition - December 1999 的一个子集。 JSON采用完全独立于语言的文本格式,但是也使用了类似于C语言家族的习惯(包括C, C++, C#, Java, JavaScript, Perl, Python等)。这些特性使JSON成为理想的数据交换语言。 JSON建构于两种结构: “名称/值”对的集合(A collection of name/value pairs)。不同的语言中,它被理解为 对象(object) ,纪录(record),结构(struct),字典(dictionary),哈希表(hash table),有键列表(keyed list),或者关联数组 (associative array)。 值的有序列表(An ordered list of values)。在大部分语言中,它被理解为数组(array)。 这些都是常见的数据结构。事实上大部分现代计算机语言都以某种形式支持它们。这使得一种数据格式在同样基于这些结构的编程语言之间交换成为可能。 JSON具有以下这些形式: 对象是一个无序的“

jquery选择器

為{幸葍}努か 提交于 2020-02-08 19:45:33
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head> <title>jquery选择器</title> <meta charset="UTF-8"> <script src="jquery-3.4.1.js"></script></head><body><div>1.基本</div><div class="div1">HELLO div</div><p>hello p</p><p id="p1">hello p1</p><!--1.jquery基本语法: $(selector).action() --><div>2.层级</div><p>p1</p><div id="outer"> <div> <p>hello div p layer</p> </div> <p>hello p layer</p></div><p>p2</p><a>456</a><p>111</p><div>3.基本</div><div class="div"> <ul> <li>111</li> <li>222</li> <li>333</li> <li>444</li> <li>555</li> </ul></div><div>4.属性<

计算属性的基本使用

女生的网名这么多〃 提交于 2020-01-31 21:48:55
< ! DOCTYPE html > < html lang = "en" > < head > < meta charset = "UTF-8" > < meta name = "viewport" content = "width=device-width, initial-scale=1.0" > < meta http - equiv = "X-UA-Compatible" content = "ie=edge" > < title > Document < / title > < / head > < body > < div id = "app" > < h2 > { { firstName + ' ' + lastName } } < / h2 > < h2 > { { firstName } } { { lastName } } < / h2 > < h2 > { { getFullName ( ) } } < / h2 > < h2 > { { fullNmae } } < / h2 > < / div > < / body > < script src = "../js/vue.js" > < / script > < script > const app = new Vue ( { el : '#app' , data : { firstName : 'liu

C#对象初始值设定项

痴心易碎 提交于 2020-01-08 20:48:59
该语法能够在调用构造函数的同时设置公有的字段或者属性,可减少要提供的重载构造函数。 对象初始值设定项可同时用于实例化和初始化对象,但前提是自断和属性间没有依存关系。 using System ; using System . Collections ; using System . Collections . Generic ; using System . Linq ; using System . Text ; namespace ConsoleApplication1 { class Contact { public string firstName ; public string lastName ; public DateTime dateOfBirth ; public override string ToString ( ) { StringBuilder sb = new StringBuilder ( ) ; sb . AppendFormat ( "Name: {0} {1}\r\n" , this . firstName , this . lastName ) ; sb . AppendFormat ( "Date of Birth: {0}\r\n" , this . dateOfBirth ) ; return sb . ToString ( ) ; }

js给json对象添加、删除、修改属性

社会主义新天地 提交于 2020-01-03 12:35:41
转: js给json对象添加、删除、修改属性 原创 LLL_LH 发布于2018-03-12 12:00:28 阅读数 34518 收藏 展开 <script type="text/javascript"> //json对象 var json={ "firstName":"Bill" , "lastName":"Gates"}; //给json对象添加新的属性并赋值 json.sex="man"; //也可以如下添加新的属性并赋值 json["sex"]="man"; //删除json对象的firstName属性 delete json.firstName; //也可以如下删除firstName属性的值 delete json["firstName"]; //修改json对象的firstName属性的值 json.firstName="Thomas"; //也可以如下修改firstName属性的值 json["firstName"]="Thomas"; </script> ———————————————— 版权声明:本文为CSDN博主「LLL_LH」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/LLL_liuhui/article/details/79525113 来源: https:/

[TypeScript][文档]函数

我是研究僧i 提交于 2019-12-30 01:43:18
在JavaScript里,函数可以使用函数体外部的变量。 当函数这么做时,我们说它‘捕获’了这些变量。 let z = 100; function addToZ(x, y) { return x + y + z; } 一、函数类型 let myAdd: (x: number, y: number) => number = function(x: number, y: number): number { return x + y; }; myAdd 具有 函数类型 (x: number, y: number) => number 匿名函数的 参数 和 返回值 也分别具有类型 function( x: number, y: number ): number 【注】:推断类型——可以不写左边或者右边的类型,TS会自动推断出来,如: // myAdd has the full function type let myAdd = function(x: number, y: number): number { return x + y; }; // The parameters `x` and `y` have the type number let myAdd: (baseValue: number, increment: number) => number = function(x, y

Spring Data Jpa 学习笔记

吃可爱长大的小学妹 提交于 2019-12-21 00:25:11
什么的Spring Data JPA Spring Data JPA为Java Persistence API(JPA)提供了存储库支持。它简化了需要访问JPA数据源的应用程序的开发。 maven依赖 <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> 核心概念 1、核心接口Repository public interface Repository<T, ID> It takes the domain class to manage as well as the ID type of the domain class as type arguments. This interface acts primarily as a marker interface to capture the types to work with and to help you to discover interfaces that extend this one. T : 表实体类型的泛型。 ID: 表关键字类型,可为组合。 举例: interface UserRepository extends

jpa ExampleMatcher Example

本小妞迷上赌 提交于 2019-12-11 01:12:51
官网文档: https://docs.spring.io/spring-data/jpa/docs/current/reference/html/#query-by-example.usage Person person = new Person(); person.setFirstname("Dave"); ExampleMatcher matcher = ExampleMatcher.matching() .withIgnorePaths("lastname") .withIncludeNullValues() .withStringMatcherEnding(); Example<Person> example = Example.of(person, matcher) Example 103. Configuring matcher options Example 103. Configuring matcher options ExampleMatcher matcher = ExampleMatcher.matching() .withMatcher("firstname", endsWith()) .withMatcher("lastname", startsWith().ignoreCase()); } Example 104. Configuring

学习-spring data jpa

落花浮王杯 提交于 2019-12-10 12:31:47
spring data jpa对照表 Keyword Sample JPQL snippet And findByLastnameAndFirstname … where x.lastname = ?1 and x.firstname = ?2 Or findByLastnameOrFirstname … where x.lastname = ?1 or x.firstname = ?2 Is,Equals findByFirstnameIs,findByFirstnameEquals … where x.firstname = ?1 Between findByStartDateBetween … where x.startDate between ?1 and ?2 LessThan findByAgeLessThan … where x.age < ?1 LessThanEqual findByAgeLessThanEqual … where x.age ⇐ ?1 GreaterThan findByAgeGreaterThan … where x.age > ?1 GreaterThanEqual findByAgeGreaterThanEqual … where x.age >= ?1 After findByStartDateAfter … where x

JavaScript Getter And Setter

我们两清 提交于 2019-12-10 04:17:58
JavaScript Getters and Setters 23 December 2013 by Jack Franklin For the most part, in JavaScript, what you see is what you get. A value's a value; there are no tricks. Sometimes however, you want a value that's based on some other values: someone's full name, for example, is a concatenation of their first and last names. If you have a person object, and you want the users of that object to be able to set the full, first or last name, and see that change immediately reflected in the other values, you'd conventionally build it with functions: person.setLastName('Smith'); person.setFirstName(