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What is Virtual DOM?
...
A virtual DOM(VDOM) is not a new concept: https://github.com/Matt-Esch/virtual-dom.
VDOM is strategically to update DOM without redrawing all the nodes in a single page application. Finding a node in a tree structure is easy but the DOM tree for a SPA app can be dr...
Passing a String by Reference in Java?
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java.lang.String is immutable.
I hate pasting URLs but https://docs.oracle.com/javase/10/docs/api/java/lang/String.html is essential for you to read and understand if you're in java-land.
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Difference between Pig and Hive? Why have both? [closed]
... The link is dead. I think the correct URL at this moment is: https://developer.yahoo.com/blogs/hadoop/pig-hive-yahoo-464.html.
– agarie
Sep 29 '14 at 16:22
1
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iPad Safari scrolling causes HTML elements to disappear and reappear with a delay
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Not a guaranteed fix, but fairly successful most of the time.
Hat tip: https://web.archive.org/web/20131005175118/http://cantina.co/2012/03/06/ios-5-native-scrolling-grins-and-gothcas/
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How do I print the type or class of a variable in Swift?
...eam
Try calling YourClass.self and yourObject.dynamicType.
Reference: https://devforums.apple.com/thread/227425.
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UITextField text change event
...ntext:context];
}
Credit to this answer regarding "context" management: https://stackoverflow.com/a/12097161/2078512
Note: Seems like while you are in the process of editing a UITextField with the built-in iOS keyboard, the "text" property of the text field is not updated with every new letter t...
What is the difference between concurrent programming and parallel programming?
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https://joearms.github.io/published/2013-04-05-concurrent-and-parallel-programming.html
Concurrent = Two queues and one coffee machine.
Parallel = Two queues and two coffee machines.
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Updating version numbers of modules in a multi-module Maven project
...e in addition to module aggregation. In fact those are distinct concepts:
https://maven.apache.org/guides/introduction/introduction-to-the-pom.html#Project_Inheritance_vs_Project_Aggregation
Some projects may be an aggregation of modules, yet not have a parent-child relationship between aggregator...
StringIO in Python3
...h a bit to find this; I hope the following helps others.
Python 2.7
See: https://docs.scipy.org/doc/numpy/user/basics.io.genfromtxt.html
import numpy as np
from StringIO import StringIO
data = "1, abc , 2\n 3, xxx, 4"
print type(data)
"""
<type 'str'>
"""
print '\n', np.genfromtxt(String...
Bypass popup blocker on window.open when JQuery event.preventDefault() is set
...e you
// know what the full URL is!
googleWindow.location.replace(`https://google.com?q=${response}`);
});
};
function fakeAjax(callback) {
setTimeout(() => {
callback('example');
}, 1000);
}
Modern browsers will open the window with a blank page (often called about:blank), a...