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How to vertically center divs? [duplicate]
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WOAH .. thanks man, i had to remove flexbox from a slider because of it inserting extra divs between flex parent & child, this was the perfect solution.
– Nishant
Jan 3 '17 at 7:26
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Check if bash variable equals 0 [duplicate]
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I am getting depth as a result from another program. I tried to echo it and there was nothing in the output. However, when I use [[]] as @Jacek Dominiak suggested, script works correctly (what is quite strange if variable is really unset). I have to admit ...
Asynchronously load images with jQuery
...uery/ajax and return a HTTP 304 (Not modified) and then use original image from cache if its already there. The above method reduces an empty request to server after the first loop of images in the gallery.
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What does string::npos mean in this code?
...rtunately, these maximum
values differ. In fact, (unsigned long)-1 differs from (unsigned short)-1 if the size of the
types differs. Thus, the comparison
idx == std::string::npos
might yield false if idx has the value -1 and idx and string::npos have different types:
std::string s;
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int idx =...
What is JNDI? What is its basic use? When is it used?
...s several advantages:
If you have a deployment sequence where apps move from devl->int->test->prod environments, you can use the same JNDI name in each environment and hide the actual database being used. Applications don't have to change as they migrate between environments.
You can min...
For..In loops in JavaScript - key value pairs
...k if your target really has that property, rather than having inherited it from its prototype. A bit simpler would be:
for (var k in target){
if (typeof target[k] !== 'function') {
alert("Key is " + k + ", value is" + target[k]);
}
}
It just checks that k is not a method (as if t...
Accessing dict_keys element by index in Python3
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@BrandonBradley: thanks for the link. Only the solution from one of the comments for that blog works for me in Python3: sorted(dict.keys()). In Python2, dict.keys() will return a list of key values.
– Good Will
May 8 '18 at 22:20
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Moment.js: Date between dates
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For React after npm install moment, import moment from 'moment';
– John
2 days ago
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keytool error :java.io.IoException:Incorrect AVA format
...n my case, I used a + sign before the country code. By removing the + sign from this name fixed the problem and allowed me to fully export my signed .apk file.
Also, this error can occur when use comma,slash, semi-colon, quotation.
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In Subversion can I be a user other than my login name?
...m to work for us.
For http access, the easiest way to log out an SVN user from the command line is:
rm ~/.subversion/auth/svn.simple/*
Hat tip: http://www.yolinux.com/TUTORIALS/Subversion.html
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