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Actual meaning of 'shell=True' in subprocess
...nd tell it to run the command. In other words, using an intermediate shell means that variables, glob patterns, and other special shell features in the command string are processed before the command is run. Here, in the example, $HOME was processed before the echo command. Actually, this is the cas...
Creating an abstract class in Objective-C
...he biggest issue for developers coming from other languages where abstract means "cannot instantiate an object of this type" in Obj-C it means "things will go wrong at runtime when you instantiate this class".
– Cross_
Jul 7 '15 at 19:44
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How do I pass data between Activities in Android application?
...the activity is already running, is there need to do startActivity(i); ? I mean, can I make activity A call activity B, and that returns data to activity A ? am I confused ?
– Francisco Corrales Morales
May 8 '14 at 23:25
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What does “xmlns” in XML mean?
...p://schemas.android.com/apk/res/android:foo /> with regards to what it "means" when an XML parser reads the document.
NOTE: You cannot actually use the full namespace URI in place of the namespace prefix in an XML instance document.
Check out this tutorial on namespaces: http://www.sitepoint.c...
OAuth secrets in mobile apps
...example, deploy a new and unique SSL cert to each client. Is that what you mean? If it is more complex than this, maybe you can refer to a more in-depth writeup?
– Cheeso
Sep 16 '14 at 19:03
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How to read and write into file using JavaScript?
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@LightnessRacesinOrbit The downvote button doesn't mean that the answer is thought to be incorrect. Its tooltip text is This answer is not useful.
– Scruffy
Nov 28 '15 at 6:46
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How do I sort an NSMutableArray with custom objects in it?
...B.birthDate.
This is rough pseudocode; you will need to flesh out what it means for one date to be "less", "more" or "equal" to another date (such as comparing seconds-since-epoch etc.):
NSComparisonResult compare(Person *firstPerson, Person *secondPerson, void *context) {
if ([firstPerson birth...
What is SQL injection? [duplicate]
...SQL Injection occurs when the user of an application is able to affect the meaning of database query. This often occurs when arbitary strings from user input are concatenated to create SQL which is fed to the database. For example lets say we had the following code (in PHP, but the same holds true...
How do you set EditText to only accept numeric values in Android?
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@RileyE What do you mean by this? We just started using this for all our numeric inputs and I want to make sure we're not missing something. Thanks!
– Joshua Pinter
Jan 9 '19 at 17:43
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Are the PUT, DELETE, HEAD, etc methods available in most web browsers?
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No, I definitely mean HTML (I'm talking about HTML forms capabilities although that may not be clear from the text - I'll edit it)
– Matthew Murdoch
Oct 3 '08 at 17:10
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