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Check if a key exists inside a json object

... !== undefined) and if(thisSession.hasOwnProperty('merchant_id')) or is it doing the same thing behind the scenes? – zero298 Dec 27 '13 at 16:47 2 ...
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How to elegantly deal with timezones

...dates to the server as little as possible. For example, if you need "now", don't create a date on the client and then pass it to the server. Either create a date in your GET and pass it to the ViewModel or on POST do DateTime.UtcNow. So far, pretty standard fare, but this is where things get 'inte...
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I want to delete all bin and obj folders to force all projects to rebuild everything

...ends on the shell you prefer to use. If you are using the cmd shell on Windows then the following should work: FOR /F "tokens=*" %%G IN ('DIR /B /AD /S bin') DO RMDIR /S /Q "%%G" FOR /F "tokens=*" %%G IN ('DIR /B /AD /S obj') DO RMDIR /S /Q "%%G" If you are using a bash or zsh type shell (such a...
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Delete last char of string

...o remove last char. For OP's question, the problem should not exist if you dont create a trailing char. Check @Øyvind Bråthen solution if you are in OP's boat. – aloisdg moving to codidact.com Jun 6 '18 at 9:48 ...
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How do I use grep to search the current directory for all files having the a string “hello” yet disp

How do I use grep to search the current directory for any and all files containing the string "hello" and display only .h and .cc files? ...
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Can I see changes before I save my file in Vim?

...n directory, open a file, make some modifications without saving them, and do :DiffSaved. function! s:DiffWithSaved() let filetype=&ft diffthis vnew | r # | normal! 1Gdd diffthis exe "setlocal bt=nofile bh=wipe nobl noswf ro ft=" . filetype endfunction com! DiffSaved call s:DiffWithSa...
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Delete all local changesets and revert to tree

...settings. PS: an even smarter approach is to use the revset language, and do: % hg strip 'roots(outgoing())' share | improve this answer | follow | ...
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Running script upon login mac [closed]

...ript (from the Actions/Utilities) copy & paste your script into the window test it save somewhere (for example you can make an Applications folder in your HOME, you will get an your_name.app) go to System Preferences -> Accounts -> Login items add this app test & done ;) EDIT: I've...
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How to set NODE_ENV to production/development in OS X

... Before running your app, you can do this in console, export NODE_ENV=production Or if you are in windows you could try this: SET NODE_ENV=production for PowerShell: $env:NODE_ENV="production" or you can run your app like this: NODE_ENV=production node app...
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PHP mkdir: Permission denied problem

...arning: mkdir() [function.mkdir]: Permission denied in ... . How to settle down the problem? 13 Answers ...