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Elastic search, multiple indexes vs one index and types for different data sets?
I have an application developed using the MVC pattern and I would like to index now multiple models of it, this means each model has a different data structure.
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Is there a Mutex in Java?
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See this page: http://www.oracle.com/technetwork/articles/javase/index-140767.html
It has a slightly different pattern which is (I think) what you are looking for:
try {
mutex.acquire();
try {
// do something
} finally {
mutex.release();
}
} catch(InterruptedException ie)...
How to get first element in a list of tuples?
...t; b
[1, 2]
The itemgetter statement returns a function that returns the index of the element you specify. It's exactly the same as writing
>>> b = map(lambda x: x[0], a)
But I find that itemgetter is a clearer and more explicit.
This is handy for making compact sort statements. For ...
Convert light frequency to RGB?
..._MAX)
return new byte[3];
len -= LEN_MIN;
var index = (int)Math.Floor(len / LEN_STEP);
var offset = len - LEN_STEP * index;
var x = Interpolate(X, index, offset);
var y = Interpolate(Y, index, offset);
var z = Interpolate(Z, index, offset...
get size of json object
... is no word-numbered identifier for each phone as they are returned in a 0-indexed array). In this response phones.length will be valid.
Iterate through the objects contained within your phones object and count them as you go, e.g.
var key, count = 0;
for(key in data.phones) {
if(data.phones.hasO...
What is the easiest way to remove the first character from a string?
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=> "bc"
Using slice! we can delete any character by specifying its index.
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Sort a list by multiple attributes?
... more important I think when you are grabbing attributes instead of 'magic indexes' of a list/tuple.
In my case I wanted to sort by multiple attributes of a class, where the incoming keys were strings. I needed different sorting in different places, and I wanted a common default sort for the pare...
Undo part of unstaged changes in git
...ts you choose individual hunks from the diff between your working copy and index to revert. Likewise, git add -p allows you to choose hunks to add to the index, and git reset -p allows you to choose individual hunks from the diff between the index and HEAD to back out of the index.
$ git checkout -...
What's the best way to set a single pixel in an HTML5 canvas?
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function setPixel(imageData, x, y, r, g, b, a) {
var index = 4 * (x + y * imageData.width);
imageData.data[index+0] = r;
imageData.data[index+1] = g;
imageData.data[index+2] = b;
imageData.data[index+3] = a;
}
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Stop Excel from automatically converting certain text values to dates
...string literal is the content of the string. Thus the quotation marks magically disappear. You can put =1+2+3 and get the value 6 after CSV import. The formula itself is not destroyed in the import process.
– lokori
Oct 8 '14 at 13:16
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