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Node.js Mongoose.js string to ObjectId function
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You can do it like so:
var mongoose = require('mongoose');
var id = mongoose.Types.ObjectId('4edd40c86762e0fb12000003');
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What does the leading semicolon in JavaScript libraries do?
... best answer was actually given in the question, so I will just write that down here for clarity:
The leading ; in front of immediately-invoked function expressions is there to prevent errors when appending the file during concatenation to a file containing an expression not properly terminated wit...
How are people unit testing with Entity Framework 6, should you bother?
...stated it's often pointless to spend vast amounts of time testing what you don't own.
However, you do own the database underneath! This is where this approach in my opinion breaks down, you don't need to test that EF/NH are doing their jobs correctly. You need to test that your mappings/implementat...
How do you render primitives as wireframes in OpenGL?
How do you render primitives as wireframes in OpenGL?
10 Answers
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One Activity and all other Fragments [closed]
...at limiting. Your activity would be a FragmentActivity and as long as you don't need a MapView then there are no real limitations. If you do want to display maps though, it can be done, but you'll need to either modify the Android Compatibility Library to have FragmentActivity extend MapActivity o...
Node.js Best Practice Exception Handling
... of the callback is err, if an error happens err is the error, if an error doesn't happen then err is null. Any other arguments follow the err argument:
var divide = function(x,y,next) {
// if error condition?
if ( y === 0 ) {
// "throw" the error safely by calling the completion ca...
嵌套块验证失败：未知的代码块类型: procedures_ifreturn，已拒绝添加 - AI...
... </value>\n <statement name=\"DO0\">\n <block type=\"procedures_ifreturn\">\n <value name=\"VALUE\">\n &nbs...
Why are mutable structs “evil”?
... value will be the same.
If you want to change it you have to consciously do it by creating a new instance of the struct with the modified data. (not a copy)
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Creating a segue programmatically
...yboard. It's even there in the name of the class: UIStoryboardSegue. You don't create segues programmatically - it is the storyboard runtime that creates them for you. You can normally call performSegueWithIdentifier: in your view controller's code, but this relies on having a segue already set u...
Best practices for in-app database migration for Sqlite
.... What are the gotchas, naming conventions and things to watch out for to do a successful migration each time?
8 Answers
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