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What is the difference between 'typedef' and 'using' in C++11?
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All standard references below refers to N4659: March 2017 post-Kona working draft/C++17 DIS.
Typedef declarations can, whereas alias declarations cannot, be used as initialization statements
But, with the first two non-template e...
Reload activity in Android
Is it a good practice to reload an Activity in Android ?
18 Answers
18
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Percentage width child element in absolutely positioned parent on Internet Explorer 7
...oking for. The following code displays exactly the same in Firefox 3 (mac) and IE7.
#absdiv {
position: absolute;
left: 100px;
top: 100px;
width: 80%;
height: 60%;
background: #999;
}
#pctchild {
width: 60%;
height: 40%;
background: #CCC;
}
#reldiv {
position: relati...
How do I find which program is using port 80 in Windows? [duplicate]
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Start menu → Accessories → right click on "Command prompt". In the menu, click "Run as Administrator" (on Windows XP you can just run it as usual), run netstat -anb, and then look through output for your program.
BTW, Skype by default tries to use ports 80 and 443 for i...
Placing/Overlapping(z-index) a view above another view in android
I have a linear layout which consists of imageview and textview , one below another in a linear layout.
11 Answers
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“unrecognized import path” with go get
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Just installed fresh golang 1.3 on fedora 20 and go get gives the same error. GOROOT is set to /usr, go itself installed into /usr, not /usr/local. Set GOPATH to $HOME/go. Any idea what else to check ?
– Dfr
Dec 2 '14 at 15:45
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How to prepend a string to a column value in MySQL?
...hat:
UPDATE tbl SET col=CONCAT('test',col);
If you want to get cleverer and only update columns which don't already have test prepended, try
UPDATE tbl SET col=CONCAT('test',col)
WHERE col NOT LIKE 'test%';
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Can you write nested functions in JavaScript?
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Yes, it is possible to write and call a function nested in another function.
Try this:
function A(){
B(); //call should be B();
function B(){
}
}
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Django queries - id vs pk
...s preferable. See the documentation of built-in functionid in the Python standard library. (It is the same in Python 2.)
– Lutz Prechelt
Mar 23 '16 at 8:17
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How to create a date object from string in javascript [duplicate]
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Surprised someone noticed this about 1.5 years and 24,000+ views later.
– Dogbert
Oct 2 '13 at 6:18
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