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Difference between Document-based and Key/Value-based databases?
...ds more complex queries, your application will have to create and maintain indexes in order to access the desired data.
Document databases support queries by key and map-reduce functions as well, but also allow you to do basic queries by value, such as "Give me all users with more than 10 posts". D...
Search for “does-not-contain” on a DataFrame in pandas
...sing the command recommended by Andy above. An example:
df = pd.DataFrame(index = [0, 1, 2], columns=['first', 'second', 'third'])
df.ix[:, 'first'] = 'myword'
df.ix[0, 'second'] = 'myword'
df.ix[2, 'second'] = 'myword'
df.ix[1, 'third'] = 'myword'
df
first second third
0 myword myword ...
What is HEAD in Git?
... This one helped me, hope it helps: marklodato.github.com/visual-git-guide/index-en.html
– raphael
Jan 4 '12 at 18:49
57
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What does [:] mean?
...opulation[3] (slicing is right-exclusive). Leaving away the left and right index, as in population[:] they default to 0 and length(population) respectively, thereby selecting the entire list. Hence this is a common idiom to make a copy of a list.
...
Hyphen, underscore, or camelCase as word delimiter in URIs?
... URL. Why? Because the hyphen separates words (so that a search engine can index the individual words), and is not a word character. Underscore is a word character, meaning it should be considered part of a word.
Double-click this in Chrome: camelCase
Double-click this in Chrome: under_score
Double...
Generic deep diff between two objects
...mean "lacking the deep array value compare" for arrays you'll get for each index that {type: ..., data:..} object. What is missing is searching value from first array in second, but as I mentioned in my answer I don't think that arrays are equal if order of their values are not equal ([1, 2, 3] is n...
Can a C++ enum class have methods?
...ations to re-/set single/group of bits, by e.g. bit mask value or even bit index driven operations would be useful for manipulation of such a set of 'flags'.
The c++11 struct/class specification just supports better scoping of enum values for access. No more, no less!
Ways to get out of the restri...
map function for objects (instead of arrays)
...t = { 'a': 1, 'b': 2, 'c': 3 };
Object.keys(myObject).map(function(key, index) {
myObject[key] *= 2;
});
console.log(myObject);
// => { 'a': 2, 'b': 4, 'c': 6 }
But you could easily iterate over an object using for ... in:
var myObject = { 'a': 1, 'b': 2, 'c': 3 };
for (...
Most efficient conversion of ResultSet to JSON?
...e, rs.getInt(column_name));
It will be slightly faster to use the column index to retrieve the column value:
obj.put(column_name, rs.getInt(i));
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How do you enable the escape key close functionality in a Twitter Bootstrap modal?
...s is an issue with how the keyup event is being bound.
You can add the tabindex attribute to you modal to get around this issue:
tabindex="-1"
So your full code should look like this:
<a href="#my-modal" data-keyboard="true" data-toggle="modal">Open Modal</a>
<div class='modal f...