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Loop inside React JSX
I'm trying to do something like the following in React JSX (where ObjectRow is a separate component):
66 Answers
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How to loop through a plain JavaScript object with the objects as members?
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for (var key in validation_messages) {
// skip loop if the property is from prototype
if (!validation_messages.hasOwnProperty(key)) continue;
var obj = validation_messages[key];
for (var prop in obj) {
// skip...
How do I get current date/time on the Windows command line in a suitable format for usage in a file/
...t's 2016 I'd use PowerShell for this unless there's a really compelling backwards-compatible reason for it, particularly because of the regional settings issue with using date . See @npocmaka's https://stackoverflow.com/a/19799236/8479
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What's an easy way to read random line from a file in Unix command line?
...here is also a utility called rl. In Debian it's in the randomize-lines package that does exactly what you want, though not available in all distros. On its home page it actually recommends the use of shuf instead (which didn't exist when it was created, I believe). shuf is part of the GNU coreuti...
What is mutex and semaphore in Java ? What is the main difference?
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EricEric
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Splitting a list into N parts of approximately equal length
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This code is broken due to rounding errors. Do not use it!!!
assert len(chunkIt([1,2,3], 10)) == 10 # fails
Here's one that could work:
def chunkIt(seq, num):
avg = len(seq) / float(num)
out = []
last = 0.0
while last...
Simple Digit Recognition OCR in OpenCV-Python
...n OCR" in OpenCV-Python (cv2). It is just for learning purposes. I would like to learn both KNearest and SVM features in OpenCV.
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Select all elements with “data-” attribute without using jQuery
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JoeJoe
70.8k1717 gold badges121121 silver badges139139 bronze badges
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What is the best way to profile javascript execution? [closed]
Is there a good profiler for javascript? I know that firebug has some support for profiling code. But I want to determine stats on a longer scale.
Imagine you are building a lot of javascript code and you want to determine what are actually the bottlenecks in the code. At first I want to see profil...
Convert JSON String To C# Object
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It looks like you're trying to deserialize to a raw object. You could create a Class that represents the object that you're converting to. This would be most useful in cases where you're dealing with larger objects or JSON String...