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jQuery UI accordion that keeps multiple sections open?
...o8rx3q/1 I also added some CSS to stop an opened accordion section looking selected when it's expanded
– Matthew Lock
Sep 2 '14 at 0:07
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How to set a value to a file input in HTML?
...ou can't.
The only way to set the value of a file input is by the user to select a file.
This is done for security reasons. Otherwise you would be able to create a JavaScript that automatically uploads a specific file from the client's computer.
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Cocoa Core Data efficient way to count entities
...an efficient way to make a count over an Entity-Type (like SQL can do with SELECT count(1) ...). Now I just solved this task with selecting all with NSFetchedResultsController and getting the count of the NSArray ! I am sure this is not the best way...
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jQuery 'input' event
...by itself will not trigger the event, but Ctrl-V to paste some text will), selecting an auto-completion option, Linux-style middle-click paste, drag-and-drop, and lots of other things.
See this page and the comments on this answer for more details.
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Where is the warnings screen option in Android Studio?
...bar, you click Analyze -> Inspect Code; then in the window that pops up select how much of your project you want to inspect (I usually do Whole Project, but you might want to select a specific module), then click okay.
Android Studio will work for a bit, then the inspection window will pop up f...
iPhone Simulator - Simulate a slow connection?
...re” to install it.
There we go!
Be sure to turn it on. You need to select a profile and enable the network conditioner with the big toggle that should be familiar from the Time Machine prefpane.
Caveat
This won't affect localhost, so be sure to use a staging server or co-worker's comput...
Serialize form data to JSON [duplicate]
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@DaniëlCamps is right. A <select multiple> with more than one option selected will fail.
– Vanderlei Pires
Oct 4 '18 at 17:25
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Express.js req.body undefined
... automatically add the 'Content-Type: application/json' header even if you select raw > json.
– Jordan
Sep 29 '13 at 8:20
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Connect to a heroku database with pgadmin
...ase (postgres instance in Heroku), do the following:
Login to Heroku, and select the application in which you have the database
Select the Resources tab and then click on "Heroku Postgres Ad-on" (see below). This will open up a new tab.
Select the Settings tab and then click on "View Credential...
How to set environment variables in Jenkins?
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Go to your job Configure screen
Find Add build step in Build section and select Inject environment variables
Set the desired environment variable as VARIABLE_NAME=VALUE pattern. In my case, I changed value of USERPROFILE variable
If you need to define a new environment variable depending on so...