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Node.js/Express.js App Only Works on Port 3000
...r - this only works if I have app.listen(3000) set inside app.js. In other words, setting the port when I run the app as you have done doesn't seem to override app.listen().
– Benjamin Martin
Aug 2 '13 at 4:33
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What is the difference between parseInt(string) and Number(string) in JavaScript? [duplicate]
...parseInt("123qwe")
returns 123
Number("123qwe")
returns NaN
In other words parseInt() parses up to the first non-digit and returns whatever it had parsed. Number() wants to convert the entire string into a number, which can also be a float BTW.
EDIT #1: Lucero commented about the radix that...
How to check if IEnumerable is null or empty?
...y iterates the enumeration if it can't be cast to an ICollection. In other words, when you call this method, if there's already a Count property on the object, it will just return that and the performance should be identical. Check out the implementation here: referencesource.microsoft.com/#System.C...
Set environment variables from file of key/value pairs
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VAR2=2
VAR3=3
...
Explanations
-a is equivalent to allexport. In other words, every variable assignment in the shell is exported into the environment (to be used by multiple child processes). More information can be found in the Set builtin documentation:
-a Each variable or function ...
AngularJS: Service vs provider vs factory
...e argument you will be provided with an instance of the function. In other words new FunctionYouPassedToService().
Factories
Syntax: module.factory( 'factoryName', function );
Result: When declaring factoryName as an injectable argument you will be provided with the value that is returned by invoki...
Are there constants in JavaScript?
...u're server-side programming in Rhino or Node.js) you can use the const keyword. It's currently supported by all modern browsers except for IE.
– Husky
Aug 1 '11 at 19:16
17
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How to exit an if clause
...imes are rare, especially when you are considering using Python. In other words: don't worry so much about function call overhead.
– ephemient
Jan 15 '10 at 5:47
18
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How to return a value from __init__ in Python?
...emantics were different from Java and the other languages that do use this word.
– cs95
Jul 20 '16 at 6:06
1
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Maven error “Failure to transfer…”
... . I put *.lastUpdated in the file name and "Could not transfer" in the "A word or phrase in the file" text box.
– rajah9
Oct 24 '12 at 13:50
5
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Android java.lang.VerifyError?
...stance of a library but not the line where the problem is caused. In other words, in this case LogCat is near useless.
– NotACleverMan
Feb 7 '12 at 12:33
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