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Seedable JavaScript random number generator
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If you don't need the seeding capability just use Math.random() and build helper functions around it (eg. randRange(start, end)).
I'm not sure what RNG you're using, but it's best to know and document it so you're aware of i...
When to use an assertion and when to use an exception
...nning, but an exception would let the program continue running.
Note that if(group != null) is not an assertion, that is just a conditional.
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What are App Domains in Facebook Apps?
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What if I develop an iOS or Android app instead of a website? What domain should I put in that case? My API domain or what?
– Fancy John
Mar 11 '18 at 5:45
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How to update a value, given a key in a hashmap?
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Java 8 way:
You can use computeIfPresent method and supply it a mapping function, which will be called to compute a new value based on existing one.
For example,
Map<String, Integer> words = new HashMap<>();
words.put("hello", 3);
words.put("...
This version of the application is not configured for billing through Google Play
...st of requirements for the Google IAB testing.
Prerequisites:
AndroidManifest must include "com.android.vending.BILLING" permission.
APK is built in release mode.
APK is signed with the release certificate(s). (Important: with "App Signing by Google Play" it only works if you download directly fr...
Does a C# app track how long its been running?
And if it does, is there an easy way to get the total time since it started?
3 Answers
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How to reuse an ostringstream?
...lt;< "hello";
s.seekp(0);
s << "b";
assert(s.str() == "bello");
If you want to use the string for c-functions, you can use std::ends, putting a terminating null like this:
std::ostringstream s;
s << "hello";
s.seekp(0);
s << "b" << std::ends;
assert(s.str().size() == 5 ...
Difference between 'python setup.py install' and 'pip install'
...utomatically download all dependencies for a package for you. In contrast, if you use setup.py, you often have to manually search out and download dependencies, which is tedious and can become frustrating.
pip keeps track of various metadata that lets you easily uninstall and update packages with a ...
How to get domain URL and application name?
...;p>The context path is: ${pageContext.request.contextPath}.</p>
If you intend to use this for all relative paths in your JSP page (which would make this question more sense), then you can make use of the HTML <base> tag:
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/cor...
To Workflow or Not to Workflow?
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I have done several WF4 projects so lets see if I can add any useful info to the other answers.
From the description of your business problem it sounds like WF4 is a good match, so no problems there.
Regarding your concerns you are right. Basically WF4 is a new produc...