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Build error: You must add a reference to System.Runtime

...that looks like this by default: <compilation debug="true" targetFramework="4.5"/> Once expanded I then added the following new configuration XML as I was instructed: <assemblies> <add assembly="System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11...
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Operation on every pair of element in a list

...product() in the itertools module. It does exactly what you describe. import itertools my_list = [1,2,3,4] for pair in itertools.product(my_list, repeat=2): foo(*pair) This is equivalent to: my_list = [1,2,3,4] for x in my_list: for y in my_list: foo(x, y) Edit: There are two...
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Uploading base64 encoded Image to Amazon S3 via Node.js

... For people who are still struggling with this issue. Here is the approach I used with native aws-sdk. var AWS = require('aws-sdk'); AWS.config.loadFromPath('./s3_config.json'); var s3Bucket = new AWS.S3( { params: {Bucket: 'm...
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What is the best practice for making an AJAX call in Angular.js?

...1.0.X. To prevent confusion it's being changed to reflect the best answer for ALL current versions of Angular as of today, 2013-12-05. The idea is to create a service that returns a promise to the returned data, then call that in your controller and handle the promise there to populate your $scope p...
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How can I create a two dimensional array in JavaScript?

... @AndersonGreen It's a good thing you mentioned a link for those interested in multi-D array solution, but the question and Ballsacian1's answer are about "2D" array, not "multi-D" array – evilReiko Jun 14 '14 at 9:56 ...
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How can I deploy/push only a subdirectory of my git repo to Heroku?

...master It appears currently that git-subtree is being included into git-core, but I don't know if that version of git-core has been released yet. share | improve this answer | ...
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Javascript: negative lookbehind equivalent?

...€8.47".match(/(?<!\$)\d+(?:\.\d*)/) // Matches "8.47" ); Platform support: ✔️ V8 ✔️ Google Chrome 62.0 ✔️ Microsoft Edge 79.0 ✔️ Node.js 6.0 behind a flag and 9.0 without a flag ✔️ Deno (all versions) ✔️ SpiderMonkey ✔️ Mozilla Firefox 78.0 ????️ Ja...
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Can a CSV file have a comment?

Is there any official way to allow a CSV formatted file to allow comments, either on its own line OR at the end of a line? ...
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Rails: around_* callbacks

I have read the documentation at http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html , but don't understand when the around_* callbacks are triggered in relation to before_* and after_* . ...
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What command opens Ruby's REPL?

... There are several REPLs for Ruby. The standard library ships with a REPL called IRb (for Interactive Ruby), which installs a program named irb, but since it is just a Ruby library, it can also be invoked from Ruby code and not just from the shell. O...