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Require returns an empty object
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This is because you have a circular dependency. Node.js handles this in a very specific way:
The first module loads and runs (in this case, book.js). It (book.js) will load and run the second module (author.js) when it (book.js) requ...
Disable Visual Studio devenv solution save dialog
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As indicated here, you have to configure "C:\Program Files (x86)\Common Files\microsoft shared\MSEnv\vslauncher.exe" to run as Administrator.
Right-click C:\Program Files (x86)\Common Files\microsoft shared\MSEnv\VSLauncher.exe
Se...
A list of indices in MongoDB?
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This is really helpful.
– Adrian Carr
May 30 '18 at 15:12
add a comment
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Javascript split regex question
... in the class it is taken to mean a literal dash and does not need to be escaped.
To explain why your pattern didn't work, /-./ tells the regular expression engine to match a literal dash character followed by any character (dots are wildcard characters in regular expressions). With "02-25-2010", i...
PostgreSQL Connection URL
...SQL connection URL formed, when the host is some other computer than the localhost?
6 Answers
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creating list of objects in Javascript
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dynamically build list of objects
var listOfObjects = [];
var a = ["car", "bike", "scooter"];
a.forEach(function(entry) {
var singleObj = {};
singleObj['type'] = 'vehicle';
singleObj['value'] = entry;
listOfObjects...
Can I install the “app store” in an IOS simulator?
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So if I need to know weather my app can open the appstore properly or not, I have to test it in real device?
– William
May 16 '12 at 2:42
10
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What does rake db:test:prepare actually do?
I am following the rails tutorial videos and I can't figure out what the db:test:prepare command actually does. Can someone provide an explanation?
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Appending to an empty DataFrame in Pandas?
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And if you want to add a row, you can use a dictionary:
df = pd.DataFrame()
df = df.append({'name': 'Zed', 'age': 9, 'height': 2}, ignore_index=True)
which gives you:
age height name
0 9 2 Zed
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Is it safe to delete an object property while iterating over them?
...the iteration - deleting other properties in the object will unpredictably cause them to be included (if already visited) or not included in the iteration, although that may or may not be a concern depending on the situation.
See also:
MDN on for..in
MDN on browser quirks re: iteration order
In d...