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Regex how to match an optional character

... When using grep regex you will get an error if you drop the {1} (grep: lookbehind assertion is not fixed length). So that's a case for leaving it in. – Zunderscore Jul 26 '17 at 9:35 ...
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How to reverse a string in Go?

... with go 1.1+ it returns error in string([]int) line, if instead []rune type is used for o, all works – Otuk Aug 11 '13 at 3:37 1 ...
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How to build a Debian/Ubuntu package from source?

... If you get the error You must put some 'source' URIs in your sources.list, uncomment the deb-src lines in your /etc/apt/sources.list – Christian Aug 21 '18 at 7:00 ...
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FormData.append(“key”, “value”) is not working

...ormData.entries()) { formObject[key] = value; } give me the same error So I'm not using FormData and i just manually build an object import React from 'react'; import formDataToObject from 'form-data-to-object'; ... let formObject = {}; // EDGE compatibility - replace FormData ...
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How to ignore the certificate check when ssl

...rverCertificateValidationCallback += (sender, certificate, chain, sslPolicyErrors) => true; In .NET 4.0, the Lambda Expression can be applied to the global filter as such ServicePointManager.ServerCertificateValidationCallback += (sender, certificate, chain, sslPolicyErrors) => true; ...
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Format floats with standard json module

... In Python3 it gives "Map object is not JSON serializable" error, but you can resolve converting the map() to a list with list( map(pretty_floats, obj) ) – Guglie Oct 11 '18 at 23:54 ...
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Is there a difference between using a dict literal and a dict constructor?

...ith python 3.4 + pycharm is that the dict() constructor produces a "syntax error" message if the number of keys exceeds 256. I prefer using the dict literal now. share | improve this answer ...
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How to create separate AngularJS controller files?

...he order of import in the index.html is important, otherwise, Angular emit error. – Deoxyseia Oct 10 '14 at 2:30 2 ...
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What does a \ (backslash) do in PHP (5.3+)?

... is it safe to remove it if my server is causing an error? – Robert Sinclair Apr 1 '16 at 3:29 ...
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Replace multiple whitespaces with single whitespace in JavaScript string

...hitespaces. Maybe you can help me to understand why. I guess it's a chrome error? Try running my code in chrome console and let me know. – Roger Gajraj Sep 13 '15 at 5:05 add ...