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What is process.env.PORT in Node.js?
....PORT || 3000 means: whatever is in the environment variable PORT, or 3000 if there's nothing there.
So you pass that app.listen, or to app.set('port', ...), and that makes your server be able to accept a parameter from the environment what port to listen on.
If you pass 3000 hard-coded to app.lis...
How to change variables value while debugging with LLDB in Xcode?
...alue while debugging in XCode? ). Does LLDB offer a similar functionality? If so, how can we use it?
3 Answers
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How do I list all cron jobs for all users?
...ab , and whatever's in /etc/cron.d . It would also be nice to see the specific commands run by run-parts in /etc/crontab .
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AngularJS directive with default options
...default options for my (element) directive, which can be overridden by specifying the option value in an attribute.
3 Answe...
JQuery .on() method with multiple event handlers to one selector
Trying to figure out how to use the Jquery .on() method with a specific selector that has multiple events associated with it. I was previously using the .live() method, but not quite sure how to accomplish the same feat with .on(). Please see my code below:
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is there a require for json in node.js
... There's one gotcha with this. The result will be cached! So if you for some reason need to load the data again (say at a cronjob), you'll get the same old result.
– Juho Vepsäläinen
Nov 18 '13 at 11:21
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Generate full SQL script from EF 5 Code First Migrations
...d -To parameter to generate an update script to update a database to a specific version.
Script-Migration -From 20190101011200_Initial-Migration -To 20190101021200_Migration-2
https://docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/#generate-sql-scripts
There are several options to th...
What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
...ethods such as require and permit.
The require method ensures that a specific parameter is present, and if it's not provided, the require method throws an error. It returns an instance of ActionController::Parameters for the key passed into require.
The permit method returns a copy of the paramet...
Table Header Views in StoryBoards
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This only seems to work if you have at least one prototype cell in the table.
– Accatyyc
Nov 28 '12 at 10:31
4
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How to import an existing X.509 certificate and private key in Java keystore to use in SSL?
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Note 2: You might want to add the -chain option to preserve the full certificate chain. (Thanks Mafuba)
Step two: Convert the pkcs12 file to a Java keystore
keytool -importkeystore \
-deststorepass [changeit] -destkeypass [changeit] -destkeystore server.keystore \
-srckeystore se...