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Write lines of text to a file in R

... Mark - what If I have several threads all of which I would like to add lines to the same file? (The issue being is that you can't have more then one connection to a file, If I am not mistaken) Thanks. – Tal Galili Mar 18 '1...
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Why does PHP 5.2+ disallow abstract static class methods?

...2, I saw a load of strict standards warnings from a project that was originally written without strict warnings: 8 Answers ...
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How to send JSON instead of a query string with $.ajax?

... JSON.stringify(data), contentType: "application/json", complete: callback }); Note that the JSON object is natively available in browsers that support JavaScript 1.7 / ECMAScript 5 or later. If you need legacy support you can use json2. ...
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Search for string and get count in vi editor

... :g/xxxx/d This will delete all the lines with pattern, and report how many deleted. Undo to get them back after. share | improve this answer ...
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A variable modified inside a while loop is not remembered

... @AvinashYadav The problem isn't really related to while loop or for loop; rather the use of subshell i.e., in cmd1 | cmd2, cmd2 is in a subshell. So if a for loop is executed in a subshell, the unexpected/problematic behaviour will be exhibited. ...
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What does the third parameter (false) indicate in document.addEventListener(“deviceready”,OnDeviceRe

...es that the user wishes to initiate capture. After initiating capture, all events of the specified type will be dispatched to the registered listener before being dispatched to any EventTargets beneath it in the DOM tree. Events which are bubbling upward through the tree will not tri...
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C: Run a System Command and Get Output? [duplicate]

... Usually, if the command is an external program, you can use the OS to help you here. command > file_output.txt So your C code would be doing something like exec("command > file_output.txt"); Then you can use the file...
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How can I pass data from Flask to JavaScript in a template?

... Mark Amery 98.9k4848 gold badges336336 silver badges379379 bronze badges answered Jun 30 '17 at 7:17 mcotemcote ...
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Convert a binary NodeJS Buffer to JavaScript ArrayBuffer

...else { return createUnsafeBuffer(size); } }   ????/lib/buffer.js#L98-L100 Node.js 9.4.0 function createUnsafeBuffer(size) { return new FastBuffer(createUnsafeArrayBuffer(size)); } What do you mean by a “memory pool?” A memory pool is a fixed-size pre-allocated memory block for keepi...
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How to remove all characters after a specific character in python?

I have a string. How do I remove all text after a certain character? ( In this case ... ) The text after will ... change so I that's why I want to remove all characters after a certain one. ...