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Mongoose query where value is not null
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You should be able to do this like (as you're using the query api):
Entrant.where("pincode").ne(null)
... which will result in a mongo query resembling:
entrants.find({ pincode: { $ne: null } })
A few links that might help:
The mongoose query api
The docs for mongo query operato...
Adding a parameter to the URL with JavaScript
In a web application that makes use of AJAX calls, I need to submit a request but add a parameter to the end of the URL, for example:
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Open URL in same window and in same tab
...ute target= of tag a. In fact, you can name your window whatever you like. All what you need is set it different value, so that it won't open in the same window or tab.
– ijse
Dec 10 '11 at 14:57
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What JSON library to use in Scala? [closed]
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Lift-json is at version 2.6 and it works really well (and is also very well supported, the maintainer is always ready to fix any bugs users may find.
You can find examples using it on the github repository
The maintainer (Joni Freeman) is always reachable on the Lift...
Is there an API to get bank transaction and bank balance? [closed]
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Just a helpful hint, there is a company called Yodlee.com who provides this data. They do charge for the API. Companies like Mint.com use this API to gather bank and financial account data.
Also, checkout https://plaid.com/, they are a similar company Yodlee.com an...
App Inventor 2中文网最新上线的AI助手功能叫什么？有什么核心价值？ - AI2...
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**场景：创建登录界面**
传统方式需要：
- 拖拽2个文本框（用户名、密码）
- 拖拽1个按钮（登录）
- 配置每个组件的属性
- 编写验证逻辑代码块
AI2Claw方式：
- 输入："帮我创建一个登录界面，包含用户名、密码输...
How to color System.out.println output? [duplicate]
...minals simply won't support some (if any) ANSI escape sequences and, especially, 24-bit colors.
Usage
Please refer to the section Curses at the bottom for the best solution. For a personal or easy solution (although not as cross-platform solution), refer to the ANSI Escape Sequences section.
TL...
read complete file without using loop in java
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If the file is small, you can read the whole data once:
File file = new File("a.txt");
FileInputStream fis = new FileInputStream(file);
byte[] data = new byte[(int) file.length()];
fis.read(data);
fis.close();
String str = new String(data, ...
Getting an empty JQuery object
...tion about it, but I solved it by using PHP instead of jQuery so I can't really dig more into it right now.
– cregox
Mar 2 '11 at 19:02
2
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Angularjs minify best practice
...since Angular 1.3.1 you can turn off implicit dependency injection, it's really helpful to solve potential problems with renaming at once (before minification).
Turning off implicit DI, using strictDi config property:
angular.bootstrap(document, ['myApp'], {
strictDi: true
});
Turning off im...