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What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
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Here's a list of explanations for the results you're seeing (and supposed to be seeing). The references I'm using are from the ECMA-262 standard.
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When using the addition operator, both the left and right operands are converted to primitives first (§11.6.1). As per §9.1, converting an o...
Which cryptographic hash function should I choose?
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In cryptography, hash functions provide three separate functions.
Collision resistance: How hard is it for someone to find two messages (any two messages) that hash the same.
Preimage Resistance: Given a hash, how hard is it to f...
Why isn't ProjectName-Prefix.pch created automatically in Xcode 6?
Why isn't ProjectName-Prefix.pch created automatically in Xcode 6 ?
8 Answers
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How to print to console using swift playground?
...cluding Xcode 7 and 8), console output appears in the Debug area at the bottom of the playground window (similar to where it appears in a project). To show it:
Menu: View > Debug Area > Show Debug Area (⌘⇧Y)
Click the middle button of the workspace-layout widget in the toolbar
Click th...
Google Play Services Library update and missing symbol @integer/google_play_services_version
When upgrading my project to the latest version of Google Play Services ( v4.0, released on Halloween 2013 ), you are now supposed to add a new tag into the AndroidManifest.xml file.
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How to use UTF-8 in resource properties with ResourceBundle
I need to use UTF-8 in my resource properties using Java's ResourceBundle . When I enter the text directly into the properties file, it displays as mojibake.
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What's the best strategy for unit-testing database-driven applications?
...art of the build process. As you discover data that causes errors, add it to your sample data to check that errors don't re-emerge.
Use a continuous integration server to build the database schema, load the sample data, and run tests. This is how we keep our test database in sync (rebuilding it at...
Activity transition in Android
...etween two activities for Android 1.5 and later?
I would like an activity to fade in.
14 Answers
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How to get the return value from a thread in python?
... Python 3.2+, stdlib concurrent.futures module provides a higher level API to threading, including passing return values or exceptions from a worker thread back to the main thread:
import concurrent.futures
def foo(bar):
print('hello {}'.format(bar))
return 'foo'
with concurrent.futures.T...
Which iOS app version/build number(s) MUST be incremented upon App Store release?
...cklist
Here are some things you can check when submitting a new build to the App Store. Making sure you have your Version Number and Build Number set properly will help you by avoiding having your App automatically rejected for having them improperly configured.
For each new version of ...