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defaultdict of defaultdict?
...ns in our case the value of d[Key_doesnt_exist] will be defaultdict(int).
If you try to access a key from this last defaultdict i.e. d[Key_doesnt_exist][Key_doesnt_exist] it will return 0, which is the return value of the argument of the last defaultdict i.e. int().
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Javascript Object push() function
...ar tempData = [];
for ( var index=0; index<data.length; index++ ) {
if ( data[index].Status == "Valid" ) {
tempData.push( data );
}
}
data = tempData;
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How can I pretty-print JSON using node.js?
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JSON.stringify's third parameter defines white-space insertion for pretty-printing. It can be a string or a number (number of spaces). Node can write to your filesystem with fs. Example:
var fs = require('fs');
fs.writeFile('test.jso...
Rails filtering array of objects by attribute value
...es = [], []
@attachments.each do |attachment|
@logos << attachment if attachment.file_type == 'logo'
@images << attachment if attachment.file_type == 'image'
end
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SQL is null and = null [duplicate]
What is the difference between
4 Answers
4
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How do I make class methods / properties in Swift?
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In Swift 2.0+, you don't need the class keyword before a function or a computed type property.
– Govind Rai
Jun 24 '16 at 20:31
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iphone ios running in separate thread
...tch_get_main_queue(), ^{
// Add code here to update the UI/send notifications based on the
// results of the background processing
});
});
If you haven't done so already, check out the videos from WWDC 2010 on libdispatch/GCD/blocks.
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How to use System.Net.HttpClient to post a complex type?
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Yea, but what if you don't have access to the Widget class?
– contactmatt
May 14 '13 at 17:53
13
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How to configure port for a Spring Boot application
... edited Aug 26 at 16:13
saif ali
53466 silver badges1919 bronze badges
answered Jan 13 '14 at 3:14
Paul ...
How to write PNG image to string with the PIL?
...:
import io
with io.BytesIO() as output:
image.save(output, format="GIF")
contents = output.getvalue()
You have to explicitly specify the output format with the format parameter, otherwise PIL will raise an error when trying to automatically detect it.
If you loaded the image from a fil...