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How do I test for an empty JavaScript object?
...
ECMA 5+:
// because Object.keys(new Date()).length === 0;
// we have to do some additional check
Object.keys(obj).length === 0 && obj.constructor === Object
Note, though, that this creates an unnecessary array (the return value of keys).
Pre-ECMA 5:
function isEmpty(o...
Create a hexadecimal colour based on a string with JavaScript
...ingle word) and from that somehow generate a hexadecimal value between #000000 and #FFFFFF , so I can use it as a colour for a HTML element.
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Is there any JSON Web Token (JWT) example in C#?
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//byte[] payloadBytes = Encoding.UTF8.GetBytes(@"{"iss":"761326798069-r5mljlln1rd4lrbhg75efgigp36m78j5@developer.gserviceaccount.com","scope":"https://www.googleapis.com/auth/prediction","aud":"https://accounts.google.com/o/oauth2/token","exp":1328554385,"iat":1328550785}");
segmen...
How can I read and parse CSV files in C++?
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304
If you don't care about escaping comma and newline,
AND you can't embed comma and newline in qu...
When is the thread pool used?
...the thread pool is required and created: process.env.UV_THREADPOOL_SIZE = 10;
If you want traditional multi-processing or multi-threading in node, you can get it through the built in cluster module or various other modules such as the aforementioned webworker-threads, or you can fake it by imple...
Merging two arrays in .NET
Is there a built in function in .NET 2.0 that will take two arrays and merge them into one array?
21 Answers
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How do I change the default port (9000) that Play uses when I execute the “run” command?
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409
Play 2.x
In Play 2, these are implemented with an sbt plugin, so the following instructions...
Check if a given key already exists in a dictionary
... intended way to test for the existence of a key in a dict.
d = {"key1": 10, "key2": 23}
if "key1" in d:
print("this will execute")
if "nonexistent key" in d:
print("this will not")
If you wanted a default, you can always use dict.get():
d = dict()
for i in range(100):
key = i % 1...
How to stop an app on Heroku?
...ectively takes all your app http-processes offline.
$ heroku ps:scale web=0
Scaling web processes... done, now running 0
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How to set layout_weight attribute dynamically from code?
...arams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT,
1.0f
);
YOUR_VIEW.setLayoutParams(param);
The last parameter is the weight.
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