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What is the $$hashKey added to my JSON.stringify result

...e track by {uniqueProperty} suffix, Angular won't have to add $$hashKey at all. For example <ul> <li ng-repeat="link in navLinks track by link.href"> <a ng-href="link.href">{{link.title}}</a> </li> </ul> Just always remember you need the "link."...
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How to change legend title in ggplot

...ould work: p <- ggplot(df, aes(x=rating, fill=cond)) + geom_density(alpha=.3) + xlab("NEW RATING TITLE") + ylab("NEW DENSITY TITLE") p <- p + guides(fill=guide_legend(title="New Legend Title")) (or alternatively) p + scale_fill_discrete(name = "New Legen...
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String comparison using '==' vs. 'strcmp()'

... @onur güngör Actually, this does answers the op's question, which is So is there any reason to use strcmp() ?, while Postfuturist's answer doesn't. Oh, hell... no one answer seemed to compile at once the use of strcmp(), the performance of =...
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TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi

...ementError when trying to save a Django User model instance and in its post_save signal, I'm saving some models that have the user as the foreign key. ...
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How do you make a HTTP request with C++?

Is there any way to easily make a HTTP request with C++? Specifically, I want to download the contents of a page (an API) and check the contents to see if it contains a 1 or a 0. Is it also possible to download the contents into a string? ...
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ArrayBuffer to base64 encoded string

... I like the simplicity of this approach, but all that string concatenation can be costly. It looks like building an array of the characters and join()ing them at the end is significantly faster on Firefox, IE, and Safari (but quite a lot slower on Chrome): jsperf.com/to...
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Initial bytes incorrect after Java AES/CBC decryption

...hought of making a fully functional code. Hope this will be useful to you all: To compile you need additional Apache Commons Codec jar, which is available here: http://commons.apache.org/proper/commons-codec/download_codec.cgi import javax.crypto.Cipher; import javax.crypto.spec.IvParameterSpec; i...
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How to find the sum of an array of numbers

...answered Apr 12 '17 at 7:31 OwChallieOwChallie 7,07411 gold badge77 silver badges1010 bronze badges ...
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NodeJS: How to get the server's port?

...eServer(); // Configuration app.configure(function(){ app.set('views', __dirname + '/views'); app.use(express.bodyDecoder()); app.use(express.methodOverride()); app.use(express.compiler({ src: __dirname + '/public', enable: ['less'] })); app.use(app.router); app.use(express.staticProvi...
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Do AJAX requests retain PHP Session info?

... What you're really getting at is: are cookies sent to with the AJAX request? Assuming the AJAX request is to the same domain (or within the domain constraints of the cookie), the answer is yes. So AJAX requests back to the same server do ...