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ExpressJS - throw er Unhandled error event
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You had run another server use the sam>me m> port like 8080.
Maybe you had run node app in other shell, Please close it and run again.
You can check PORT no. is available or not using
netstat -tulnp | grep <port no>
Alternatively, you can use lsof:
lsof -...
File Explorer in Android Studio
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NOTE: For m>me m>, clicking on the Device Monitor first popped up a window asking for the location of the SDK. This was located at C:\users\<USER>\AppData\Local\Android\android-sdk\ . After putting in the correct SDK it worked.
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Get a UTC tim>me m>stamp [duplicate]
How can I get the current UTC tim>me m>stamp in JavaScript? I want to do this so I can send tim>me m>stamps from the client-side that are independent of their tim>me m>zone.
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Why Maven uses JDK 1.6 but my java -version is 1.7
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add the following to your ~/.mavenrc:
export JAVA_HOm>ME m>=/Library/Java/JavaVirtualMachines/{jdk-version}/Contents/Hom>me m>
Second Solution:
echo export "JAVA_HOm>ME m>=\$(/usr/libexec/java_hom>me m>)" >> ~/.bash_profile
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Where does the iPhone Simulator store its data?
...each of the legacy iPhone OS/iOS versions it can simulate, so the path becom>me m>s:
~/Library/Application Support/iPhone Simulator/[OS version]/Applications/[appGUID]/
if you have the previous SDK installed alongside, its 3.1.x simulator will continue saving its data in:
~/Library/Application Support...
Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
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Here's a summary of Dimitris Andreou's link.
Rem>me m>mber sum of i-th powers, where i=1,2,..,k. This reduces the problem to solving the system of equations
a1 + a2 + ... + ak = b1
a12 + a22 + ... + ak2 = b2
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a1k + a2k + ... + akk = bk
Using Newton's identities, knowin...
Regex: ignore case sensitivity
...es support it:
/G[a-b].*/i
string.match("G[a-b].*", "i")
Check the docum>me m>ntation for your language/platform/tool to find how the matching modes are specified.
If you want only part of the regex to be case insensitive (as my original answer presum>me m>d), then you have two options:
Use the (?i) an...
Why aren't Java Collections remove m>me m>thods generic?
... Bill Pugh refer to this issue in Java Puzzlers IV: The
Phantom Reference m>Me m>nace, Attack of the Clone, and Revenge of The
Shift.
Josh Bloch says (6:41) that they attempted to generify the get m>me m>thod
of Map, remove m>me m>thod and som>me m> other, but "it simply didn't work".
There are too many reasonable...
In C#, how do I calculate som>me m>one's age based on a DateTim>me m> type birthday?
A given DateTim>me m> Type represents a person's birthday.
How could I calculate his / her age in years?
61 Answers
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SVN upgrade working copy
...date the working copy to the new format when a write
operation was perform>me m>d. Subversion 1.7, however, will make this a
manual step. Before using Subversion 1.7 with their working copies,
users will be required to run a new command, svn upgrade to update the
m>me m>tadata to the new format. This ...