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sed in-place flag that works both on Mac (BSD) and Linux
...his worked on mac, but on ubuntu 16.04 it overwrite the original file to 0 bytes and creates the the .bak file also with 0 bytes ?
– house9
Oct 27 '16 at 18:22
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如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...fferent parameters within each algorithm as well), and select the best one by cross-validation. But if you’re simply looking for a “good enough” algorithm for your problem, or a place to start, here are some general guidelines I’ve found to work well over the years.
如何针对某...
What is the current state of the art in HTML canvas JavaScript libraries and frameworks? [closed]
...nvas library to help with exactly that — manipulating objects on canvas, by handling events and user interactions. It's not released yet, but take a look at a simple preview demo.
You can also see it in action in this design editor, which it was originally created for.
Edit: The project is now a...
jQuery get the location of an element relative to window
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TL;DR
headroom_by_jQuery = $('#id').offset().top - $(window).scrollTop();
headroom_by_DOM = $('#id')[0].getBoundingClientRect().top; // if no iframe
.getBoundingClientRect() appears to be universal. .offset() and .scrollTop() have bee...
Converting String to Int with Swift
The application basically calculates acceleration by inputting Initial and final velocity and time and then use a formula to calculate acceleration. However, since the values in the text boxes are string, I am unable to convert them to integers.
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How do I implement a callback in PHP?
...ackage\Foo', 'method']
call_user_func does not support passing non-objects by reference, so you can either use call_user_func_array or, in later PHP versions, save the callback to a var and use the direct syntax: $cb();
Objects with an __invoke() method (including anonymous functions) fall under the...
Running Composer returns: “Could not open input file: composer.phar”
...d the next part of the page telling you to stop referring to composer.phar by its full name and abbreviate it as an executable (that you just renamed with the mv command). So this:
$ php composer.phar update friendsofsymfony/elastica-bundle
Becomes this:
$ composer update friendsofsymfony/elasti...
scheduleAtFixedRate vs scheduleWithFixedDelay
...ll not get executed concurrently with itself as per docs, but it's decided by the executor, which may be custom OR the standard ScheduledThreadPoolExecutor (and the latter has well defined behaviour)
– Ordous
Jul 9 '14 at 10:48
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Validation of radio button group using jQuery validation plugin
...me of "my options" to be selected before proceeding.
The label suggestion by Mahes, btw, works wonderfully!
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System.Security.SecurityException when writing to Event Log
...Network Service read permission on the EventLog/Security key (as suggested by Firenzi and royrules22) follow instructions from http://geekswithblogs.net/timh/archive/2005/10/05/56029.aspx
Open the Registry Editor:
Select Start then Run
Enter regedt32 or regedit
Navigate/expand to the following ...