angularjs

Check if value is not empty and not null in angular template?

僤鯓⒐⒋嵵緔 提交于 2020-12-09 00:37:32
问题 How do I check if value is not empty and not null. in Controller: $scope.data.variable = 'some valid data'; <div ng-if="data.variable != ''">something else</div> Thanks 回答1: since both null and empty are falsy values div.variable if not null or empty will evaluate to true and if either of null or empty will evaluate to false <div ng-if="data.variable">something else</div> 回答2: I suggest you have such a function is your controller: $scope.isEmpty = function(value){ return (value == "" || value

AngularJS - hide/show div if date is within last 6 months

十年热恋 提交于 2020-12-08 02:20:52
问题 I have an ng-repeat that displays a list of dates, and information about purchases on that dates. HTML: <div ng-repeat="data in MyData"> <p> {{ data.purchasedOn.substring(6, data.purchasedOn.length - 2) | date:'dd/MM/yyyy' }} </p> <br> <p> {{ data.purchaseDescription }} </p> </div> Which displays: 01/02/2013 "Lorem ipsum dolor sit amet, consectetur adipisicing elit" 10/04/2014 "Lorem ipsum dolor sit amet, consectetur adipisicing elit" 02/08/2014 "Lorem ipsum dolor sit amet, consectetur

How to empty an JS Object?

六月ゝ 毕业季﹏ 提交于 2020-12-05 11:33:23
问题 I have an object like var person = {'id':null, 'name':'John Doe'} After inserting the object value into the database, I will get another object from the server: var personInDB = {'id':1234, 'name':'John Doe'} I have used angular.merge to use updated the value of person with that of personInDB . But, I want to empty person object before applying angular.merge , so that I only get the values in database. I don't want to assign new empty object to person as that will break data-binding in

How to empty an JS Object?

拜拜、爱过 提交于 2020-12-05 11:29:28
问题 I have an object like var person = {'id':null, 'name':'John Doe'} After inserting the object value into the database, I will get another object from the server: var personInDB = {'id':1234, 'name':'John Doe'} I have used angular.merge to use updated the value of person with that of personInDB . But, I want to empty person object before applying angular.merge , so that I only get the values in database. I don't want to assign new empty object to person as that will break data-binding in

Angular服务器渲染常遇的坑

妖精的绣舞 提交于 2020-12-04 10:00:46
前言 由于官网有SEO需要,因此对现官网项目进行***的整改兼容,在调试的过程中遇到了不少问题。本来在官网的demo项目中使用是比较顺畅的,但是由于本项目比较大复杂性比较高,踩了不少的坑。以下是我在调试过程中遇到的一些问题汇总,希望其他人可以避开这些坑。 1. 使用浏览器 API报错问题 在运行服务的时候,通常会遇到一下的一些报错 ReferenceError: window is not defined 或者 ReferenceError: document is not defined 由于 Universal 应用并没有运行在浏览器中,因此该服务器上可能会缺少浏览器的某些 API 和其它能力。比如,服务端应用不能引用浏览器独有的全局对象,比如 window、document、navigator 或 location。如果直接使用会导致运行的时候出现报错。因此,我们需要对使用浏览器的API方法做好兼容。 方案1:在server.ts,引入domino做兼容 const domino = require('domino'); const win = domino.createWindow(template); global['window'] = win; global['document'] = win.document; global['CSS'] = null;

Connect.sid is always undefined and req.sessionID keeps reseting

谁说胖子不能爱 提交于 2020-12-04 05:29:16
问题 I'm quite new to NodeJS/Express/Socket.IO and have made a simple rock-paper-scissors app using Socket.IO communication (on the client-side I'm using AngularJS). That part of the app worked quite fine so far. However, I started working on implementing sessions using Redis and have stumbled upon some problems. Since I'm doing this to learn, I decided to do a part of the app using sockets (the whole real-time part of playing a game of rock-paper-scissors), and the other part which doesn't

Connect.sid is always undefined and req.sessionID keeps reseting

*爱你&永不变心* 提交于 2020-12-04 05:25:57
问题 I'm quite new to NodeJS/Express/Socket.IO and have made a simple rock-paper-scissors app using Socket.IO communication (on the client-side I'm using AngularJS). That part of the app worked quite fine so far. However, I started working on implementing sessions using Redis and have stumbled upon some problems. Since I'm doing this to learn, I decided to do a part of the app using sockets (the whole real-time part of playing a game of rock-paper-scissors), and the other part which doesn't

Connect.sid is always undefined and req.sessionID keeps reseting

北城余情 提交于 2020-12-04 05:25:40
问题 I'm quite new to NodeJS/Express/Socket.IO and have made a simple rock-paper-scissors app using Socket.IO communication (on the client-side I'm using AngularJS). That part of the app worked quite fine so far. However, I started working on implementing sessions using Redis and have stumbled upon some problems. Since I'm doing this to learn, I decided to do a part of the app using sockets (the whole real-time part of playing a game of rock-paper-scissors), and the other part which doesn't

Angular (SPA) WebPack模块化打包、按需加载解决方案完整实现

て烟熏妆下的殇ゞ 提交于 2020-12-01 11:27:19
Angular (SPA) WebPack模块化打包、按需加载解决方案完整实现 参考文章: (1)Angular (SPA) WebPack模块化打包、按需加载解决方案完整实现 (2)https://www.cnblogs.com/teamblog/p/6241189.html 备忘一下。 来源: oschina 链接: https://my.oschina.net/u/4428122/blog/4767344

How to run userscript(/greasemonkey) after AngularJS library is loaded

柔情痞子 提交于 2020-12-01 07:52:48
问题 I just want to create some extensions to angular object to make AngularJS debugging more convenient. But when I run add userscript, it can't find an angular object. AngularJS library is loaded in the bottom of tag. UPD : @estus provided right answer, but if you want to use chrome you need to install it via Tampermonkey extension. You can find final code snippet here. 回答1: The fact that Angular is unavailable at the moment when user script runs indicates that Angular is loaded asynchronously,