大约有 41,000 项符合查询结果(耗时:0.0562秒) [XML]

https://stackoverflow.com/ques... 

Rails: Default sort order for a rails model?

...hen it gets used for actions like where's limiting (filtering) the default selection (a bad idea for a default) rather than just being used for ordering results. For where selections, just use the regular named scopes. and add that scope on in the query, e.g. Book.all.published where published is a ...
https://stackoverflow.com/ques... 

Google maps API V3 - multiple markers on exact same spot

...t to be written) function to popup an InfoWindow with a list of options to select from. Note that the markerClusterer object is passed to your function, because you will need this to determine how many markers there are in that cluster. For example: function multiChoice(mc) { var cluster = mc....
https://stackoverflow.com/ques... 

Does List guarantee insertion order?

...I have for moving an item down one place in a list: if (this.folderImages.SelectedIndex > -1 && this.folderImages.SelectedIndex < this.folderImages.Items.Count - 1) { string imageName = this.folderImages.SelectedItem as string; int index = this.folderImages.SelectedIndex; ...
https://stackoverflow.com/ques... 

iPhone App Minus App Store?

...w the use of this certificate: Launch Keychain Access.app. With no items selected, from the Keychain menu select Certificate Assistant, then Create a Certificate. Name: iPhone Developer Certificate Type: Code Signing Let me override defaults: Yes Click Continue Validity: 3650 days Click Contin...
https://stackoverflow.com/ques... 

When to use MongoDB or other document oriented database systems? [closed]

...cal CRUD stuff. Storing what is essentially a huge hash, and being able to select on any of those keys, is what most people use a relational database for. If your DB is 3NF and you don’t do any joins (you’re just selecting a bunch of tables and putting all the objects together, AKA what most peo...
https://stackoverflow.com/ques... 

Set default syntax to different filetype in Sublime Text 2

...ax type in the lower right corner of the window. This will open the syntax selection menu with the option to Open all with current extension as... at the top of the menu. Updated 2016-04-19: As of now, this also works for Sublime Text 3. ...
https://stackoverflow.com/ques... 

How to join (merge) data frames (inner, outer, left, right)

...s these operations in SQL. library(sqldf) ## inner join df3 <- sqldf("SELECT CustomerId, Product, State FROM df1 JOIN df2 USING(CustomerID)") ## left join (substitute 'right' for right join) df4 <- sqldf("SELECT CustomerId, Product, State FROM df1...
https://stackoverflow.com/ques... 

ng-repeat finish event

... Beautiful, this did the job. I wanted to auto-select text in a textbox, and the timeout did the trick. Otherwise, the {{model.value}} text got selected and then deselected when the data-bound model.value was injected. – JoshGough Ma...
https://stackoverflow.com/ques... 

How do you fork your own repository on GitHub?

...our repo's main page on github. Click the + icon in the top right corner. Select "Import repository". Where it asks for the "Old URL", paste the URL you copied at step #1 Enter the name of your new repo and click Begin Import. That's it! You now have a copy of the full repo, with all commit histor...
https://stackoverflow.com/ques... 

What is Full Text Search vs LIKE

... can enable support for leading wildcards by pre-compiling suffix trees in selected fields. Other features typical of full-text search are lexical analysis or tokenization—breaking a block of unstructured text into individual words, phrases, and special tokens morphological analysis, or stemmi...