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Remove property for all objects in array

...the performances of your applications. You can't avoid it if you want to really remove a property but you often can either set the property to undefined or just build new objects without the property. share | ...
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How to export data as CSV format from SQL Server using sqlcmd?

...th '""' + col1 + '""' AS col1, wrapped in (doubled) double quotes or just call a stored procedure. – MisterIsaak Dec 11 '13 at 17:17 ...
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Delete/Reset all entries in Core Data?

Do you know of any way to delete all of the entries stored in Core Data? My schema should stay the same; I just want to reset it to blank. ...
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How to get last items of a list in Python?

... a negative index will count from the end of the list, so: num_list[-9:] share | improve this answer | follow | ...
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Difference between “module.exports” and “exports” in the CommonJs Module System

...ns to be set to module.exports. At the end of your file, node.js will basically 'return' module.exports to the require function. A simplified way to view a JS file in Node could be this: var module = { exports: {} }; var exports = module.exports; // your code return module.exports; If you set a...
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Using PHP with Socket.io

...t there are some ways to implement WebSockets. There is this jQuery plugin allowing you to use Websockets while gracefully degrading for non-supporting browsers. On the PHP side, there is this class which seems to be the most widely used for PHP WS servers. ...
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How do I create a simple 'Hello World' module in Magento?

...perienced programmer or don't have access to an experienced programmer (ideally in PHP and Java), pick another cart. Magento is well engineered, but it was engineered to be a shopping cart solution that other programmers can build modules on top of. It was not engineered to be easily understood by p...
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How to get the first column of a pandas DataFrame as a Series?

...c wasn't there yet back then. In 2016, the correct answer is Jeff's (after all he's pandas God, mind you ;-)). I'm not sure what's SO's policy regarding update of answers due to API change; I'm honestly surprised by the number of votes for this answer, didn't think it was that useful to people... ...
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Pick any kind of file via an Intent in Android

...for camera but for other files.. In my device I have ES File Explorer installed and This simply thing works in my case.. Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("file/*"); startActivityForResult(intent, PICKFILE_REQUEST_CODE); ...
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What Every Programmer Should Know About Memory?

.... So, any book or article that describes something fundamental cannot be called outdated. "What every programmer should know about memory" is definitely worth to read, but, well, I don't think it's for "every programmer". It's more suitable for system/embedded/kernel guys. ...