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T-SQL - function with default parameters
...dvantage of default concept here... I need to go and change all the places now.
– LCJ
Sep 12 '14 at 20:26
8
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c# open a new form then close the current form?
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form2.Closed += (s, args) => this.Close(); May I know how does this statement work? what exactly (s,args) is?
– Yash Saraiya
Jan 4 '16 at 7:28
1
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Can I run multiple programs in a Docker container?
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It looks like new version's of Docker now support Docker container networks.
– jpierson
Feb 24 '16 at 21:42
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String concatenation: concat() vs “+” operator
...ring cat(String a, String b) {
a += b;
return a;
}
}
Now disassemble with javap -c (included in the Sun JDK). You should see a listing including:
java.lang.String cat(java.lang.String, java.lang.String);
Code:
0: new #2; //class java/lang/StringBuilder
3: dup
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Android Studio/Intellij Idea: “Table of Contents” for a class
...ough is this lack of "Table of Contents" for a class. I apologize for not knowing exactly what to call it. But what I am referring to is the dropdown menu in eclipse that lists all the methods, interfaces, classes and so on that are in that class file. This then allows you to jump to that position. ...
How do negative margins in CSS work and why is (margin-top:-5 != margin-bottom:5)?
...arting in the top left corner (let's stick with the vertical rendering for now, keeping in mind that the horizontal one is treated the same).
consider the following html:
<div class="box1"></div>
<div class="box2"></div>
<div class="box3"></div>
analogous to...
Identifying the dependency relationship for python packages installed with pip
...:|Requires:)' | sed s/Name:/\\\nName:/ -- but it seems that pipdeptree is now a better solution.
– Mark Chackerian
Aug 3 '17 at 15:26
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Open file via SSH and Sudo with Emacs
...ll uses the proxy mechanism underneath, tramp-default-proxies-alist should now include the value ("remotehost" "root" "/ssh:you@remotehost:")
Meaning that the proxy /ssh:you@remotehost: is going to be used whenever you request a file as root@remotehost.
root is the default user for these methods, bu...
Why is address zero used for the null pointer?
... In the days when C was first developed, memory was MUCH more costly than now. The number zero can be conveniently calculated using an XOR instruction or without the need to load an immediate value. Depending upon the architecture, this could potentially save space.
– Sparky...
What's the optimum way of storing an NSDate in NSUserDefaults?
... For the record - 32 bit floats have only 24 bits for accuracy, so 1970 to now is 40 years, which is 40*365*86400 seconds, and (40 * 365 * 86 400) / (2 ** 24) = 75second error. Double precision is what a DateTime interval, and its RAW precision is now better than a millionth of a second.
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