Comments (3)
zcxzmzy
commented on June 7, 2024
也就是说不要map,直接subscribe，也可以啊，大神这里面map的作用是
from angular2-questionnaire.
commented on June 7, 2024
map 只是对数据的转换而已，当然也是可以把map里包含的操作全都放在 subscribe 里面处理，执行上没问题，但不太优雅而已。
所以推荐把数据转换或格式化等相关操作放到map，这样subscribe可以拿到纯净的数据了。
from angular2-questionnaire.
zcxzmzy
commented on June 7, 2024
哦哦原来如此，谢谢老师
from angular2-questionnaire.
Related Issues (17)
- ng2-bootstrap问题 HOT 2
- 书中416页的问卷服务是否存在跨域问题？ HOT 1
- 书中第379页中storage不对 HOT 2
- github上给的源码跟示例代码不一致 HOT 1
- 关于questionnaire-item.component的ngOnChanges HOT 5
- npm start报错 HOT 3
- 他的作用是什么<QuestionnaireModel>res.json().data,就是这个<QuestionnaireModel> HOT 1
- 很着急的问题问老师 HOT 2
- 启动报错 HOT 3
- 无法登录注册 HOT 4
- 刷新页面需要重新登录 HOT 1
- carousel not work auto HOT 7
- 问卷调查系统，环境搭建，书375页 环境搭建 时，npm start时报错 HOT 11
- 问卷调查系统进入 后台报错。 HOT 3
- 请教一个关于移动端的问题， HOT 2
- 问卷系统案例，新的错误，cd到frontend文件执行npm install时会报错，麻烦帮忙解决 HOT 8
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from angular2-questionnaire.