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How to decide font color in white or black depending on background color?
...e intensities. Each 2 digits of the code represent a value in hexadecimal (base-16) notation. I won't get into the details of the conversion here, they're easy to look up.
Once you have the intensities for the individual colors, you can determine the overall intensity of the color and choose the co...
Converting JavaScript object with numeric keys into array
...;
for (var prop in data) {
arr.push(data[prop]);
}
console.log(arr);
DEMO
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How do you display JavaScript datetime in 12 hour AM/PM format?
... 1st and 3rd groups.
WARNING: toLocaleTimeString() may behave differently based on region / location.
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Can someone explain how to implement the jQuery File Upload plugin?
...h does not have any dependencies.
The author has also created a bootstrap demo which was inspired by the jQuery File Upload plugin.
I hope this saves someone else some time.
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...lt; N), finding the position (N) of the highest set bit is the integer log base 2 of that integer.
http://graphics.stanford.edu/~seander/bithacks.html#IntegerLogObvious
unsigned int v;
unsigned r = 0;
while (v >>= 1) {
r++;
}
This "obvious" algorithm may not be transparent to everyone...
eclipse升级后启动失败：Heap堆内存不足 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...or
!STACK 1
java.lang.OutOfMemoryError: Java heap space
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.addWaiter(AbstractQueuedSynchronizer.java:651)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(AbstractQueuedSynchron...
How to create a file in memory for user to download, but not through server?
...dia. Example:
<a href="data:application/octet-stream;charset=utf-16le;base64,//5mAG8AbwAgAGIAYQByAAoA">text file</a>
The octet-stream is to force a download prompt. Otherwise, it will probably open in the browser.
For CSV, you can use:
<a href="data:application/octet-stream,fie...
How to find the Windows version from the PowerShell command line
...tation
OS Build Type : Multiprocessor Free
System Type : x64-based PC
System Locale : ru;Russian
Hotfix(s) : 274 Hotfix(s) Installed.,[01]: KB2849697,[02]: KB2849697,[03]:...
Windows 10 output for the same command:
OS Name : Microsoft Windows 10 Enterpris...
Python Image Library fails with message “decoder JPEG not available” - PIL
...f that doesn't work, try one of the below, depending on whether you are on 64bit or 32bit Ubuntu.
For Ubuntu x64:
sudo ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib
sudo ln -s /usr/lib/x86_64-linux-gnu/libfreetype.so /usr/lib
sudo ln -s /usr/lib/x86_64-linux-gnu/libz.so /usr/lib
Or for Ubu...
How to perform a real time search and filter on a HTML table
...').toLowerCase();
return !~text.indexOf(val);
}).hide();
});
Demo: http://jsfiddle.net/7BUmG/2/
Regular expression search
More advanced functionality using regular expressions will allow you to search words in any order in the row. It will work the same if you type apple green or gre...