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Why does Decimal.Divide(int, int) work, but not (int / int)?
...g code lines after each of the above examples:
Console.WriteLine(result.ToString());
Console.WriteLine(result.GetType().ToString());
The output in the first case will be
0
System.Int32
..and in the second case:
0,5
System.Decimal
...
Checking if a variable is defined?
...
Use the defined? keyword (documentation). It will return a String with the kind of the item, or nil if it doesn’t exist.
>> a = 1
=> 1
>> defined? a
=> "local-variable"
>> defined? b
=> nil
>> defined? nil
=> "nil"
>> defined? String
...
Differences between cookies and sessions?
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A cookie is simply a short text string that is sent back and forth between the client and the server. You could store name=bob; password=asdfas in a cookie and send that back and forth to identify the client on the server side. You could think of this as ...
Logical Operators, || or OR?
...s a boolean. If it returns a value PHP considers truthy (true, a non-empty string, etc.), it will not call die().
– Matthew Ratzloff
Nov 1 '13 at 17:20
...
Change Checkbox value without triggering onCheckChanged
...derstandability. But if its all contained to a single class a few comment strings will be more than enough to explain whats happening.
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How to check for an active Internet connection on iOS or macOS?
...out including it anywhere
2) Add Tony Million's version of Reachability.h and Reachability.m to the project (found here: https://github.com/tonymillion/Reachability)
3) Update the interface section
#import "Reachability.h"
// Add this to the interface in the .m file of your view controller
@inte...
Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
...
Apache Commons
for (String code: ListUtils.emptyIfNull(codes)) {
}
Google Guava
for (String code: Optional.of(codes).get()) {
}
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Elastic search, multiple indexes vs one index and types for different data sets?
...ies": {
"firstName":{
"type": "string"
},
"lastName":{
"type": "string"
}
}
},
"publisherName":{
"type": "string"
...
Hash collision in git
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Picking atoms on 10 Moons
An SHA-1 hash is a 40 hex character string... that's 4 bits per character times 40... 160 bits. Now we know 10 bits is approximately 1000 (1024 to be exact) meaning that there are 1 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 different SHA-1...
How can I convert a datetime object to milliseconds since epoch (unix time) in Python?
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Btw, strftime("%s") returns an empty string for me. The second way works fine.
– Pavel Vlasov
Apr 6 '12 at 16:32
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