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How to create JSON string in JavaScript?
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Javascript doesn't handle Strings over multiple lines.
You will need to concatenate those:
var obj = '{'
+'"name" : "Raj",'
+'"age" : 32,'
+'"married" : false'
+'}';
You can also use template literals in ES6 and ...
How do I join two lists in Java?
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It is ugly but at least its fluent and can be used without multi line lambdas. I really wish there was a fluent addAll that returned the concatinated list.
– Usman Ismail
Jan 11 '18 at 15:06
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Is there a built-in function to print all the current properties and values of an object?
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Pretty printing is also available in the interactive debugger as a command:
(Pdb) pp vars()
{'__builtins__': {'ArithmeticError': <type 'exceptions.ArithmeticError'>,
'AssertionError': <type 'exceptions.AssertionError'>,
'AttributeError': <type ...
Can two applications listen to the same port?
Can two applications on the same machine bind to the same port and IP address? Taking it a step further, can one app listen to requests coming from a certain IP and the other to another remote IP?
I know I can have one application that starts off two threads (or forks) to have similar behavior, but...
How to enumerate an enum
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Then if you have duplicates/synonyms in your enum, and you want the other behavior, you can use Linq's Distinct extension (since .NET 3.5), so foreach (var suit in ((Suit[])Enum.GetValues(typeof(Suit))).Distinct()) { }.
– Jeppe Stig Nielsen
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How do I delete multiple rows in Entity Framework (without foreach)
...ng Entity Framework. There isn't a foreign key / parent object so I can't handle this with OnDeleteCascade.
22 Answers
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How do I ignore all files in a folder with a Git repository in Sourcetree?
...it track the folder (by tracking this file). The * means ignore all files, and the !.gitignore means don't ignore the file itself
– Billy Moon
Mar 12 '12 at 10:36
2
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On design patterns: When should I use the singleton?
...ptable" reasons to use a Singleton.
One reason that tends to come up over and over again on the internets is that of a "logging" class (which you mentioned). In this case, a Singleton can be used instead of a single instance of a class because a logging class usually needs to be used over and over ...
How do I programmatically set the value of a select box element using JavaScript?
... Great answer, this is way easier than looping through the options. And it's standards compliant: dev.w3.org/html5/spec/…. If there are browser incompatibilities (of course there are :) I'd be very interested to know what they are. That's the sort of thing you usually count on ppk for, but ...
Items in JSON object are out of order using “json.dumps”?
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Both Python dict (before Python 3.7) and JSON object are unordered collections. You could pass sort_keys parameter, to sort the keys:
>>> import json
>>> json.dumps({'a': 1, 'b': 2})
'{"b": 2, "a": 1}'
>>> json.dumps({'a': 1, 'b': 2},...