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How do I analyze a .hprof file?
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Some of what you can do is mind-blowingly good for finding memory leaks etc -- including running a form of limited SQL (OQL) against the in-memory objects, i.e.
SELECT toString(firstName) FROM com.yourcompany.somepackage.User
Totally brilliant.
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Add leading zeroes/0's to existing Excel values to certain length
...tom format as 0000 for a four digit number, 00000 for five, 000000 for six etc. Obviously this is only helpful for shorter format numbers
– Hilary
Apr 4 '16 at 14:52
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What linux shell command returns a part of a string? [duplicate]
...tents, then EOF), and typically (on systems where TMPDIR in on tmpfs/shmfs/etc) cost less than the subshell to run echo would.
– Charles Duffy
Dec 4 '18 at 22:12
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How can I pop-up a print dialog box using Javascript?
...t('Please be sure to set your printer to Landscape.');window.print();">
etc.
</body>
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Use CSS3 transitions with gradient backgrounds
...und-size: 100% 90px;
background-position: 0 -30px;
-webkit-transition: all 0.2s linear;
-moz-transition: all 0.2s linear;
-o-transition: all 0.2s linear;
transition: all 0.2s linear;
}
Hover state
.btn:hover {
background-position: 0 0;
}
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Center image using text-align center?
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This worked for me when display:block, etc. would not.
– matthewsheets
Aug 27 '15 at 20:35
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Using the “animated circle” in an ImageView while loading stuff
...inate="true" />
</RelativeLayout>
And when you finish loading, call this one line:
findViewById(R.id.loadingPanel).setVisibility(View.GONE);
The result (and it spins too):
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.NET HttpClient. How to POST string value?
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You should private static readonly HttpClient _client = new HttpClient(); instead aspnetmonsters.com/2016/08/2016-08-27-httpclientwrong
– Sameer Alibhai
May 9 '17 at 15:05
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PHP DOMDocument errors/warnings on html5-tags
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@SuperCat It's all dependant on the underlying libxml library.
– lonesomeday
Jul 2 '17 at 12:59
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What is DOM Event delegation?
...cells (and not table headers, or the whitespace within a row around cells, etc.).
It's also useful when you're going to be adding and removing elements from the container, because you don't have to worry about adding and removing event handlers on those elements; just hook the event on the containe...