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How can I perform a str_replace in JavaScript, replacing text in JavaScript?
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New Regex String: 3,571,180 operations/sec
New Regex: 3,224,919 operations/sec
From the sake of completeness of this answer (borrowing from the comments), it's worth mentioning that .replace only replaces the first instance of the matched character. Its only possible to replace ...
How do I test a file upload in rails?
...able on SO.
The rails framework has a function fixture_file_upload (Rails 2 Rails 3, Rails 5), which will search your fixtures directory for the file specified and will make it available as a test file for the controller in functional testing. To use it:
1) Put your file to be uploaded in the test...
How do I create a custom Error in JavaScript?
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According to code.google.com/p/chromium/issues/detail?id=228909 subclass.prototype = new Error() is bad form. You are supposed to use subclass.prototype = Object.create(superclass.prototype) instead. I'm hoping it might fix the stack-trace problem as well.
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Close and Dispose - which to call?
...wing.
– David Hammond
Dec 15 '11 at 22:45
@DavidHammond: You're right. I'm deleting my previous comment.
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Best place to insert the Google Analytics code [duplicate]
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Google used to recommend putting it just before the </body> tag, because the original me...
How to make layout with rounded corners..?
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Almost always, my content never cover the corners. This works perfectly.
– David J. Y. Tang
Jul 25 '...
Can't make the custom DialogFragment transparent over the Fragment
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edited Jun 20 '16 at 12:37
IcyFlame
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How to code a BAT file to always run as admin mode?
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answered Jul 25 '11 at 2:54
Kerrek SBKerrek SB
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When should I use genetic algorithms as opposed to neural networks? [closed]
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answered Sep 9 '09 at 22:11
Dawie StraussDawie Strauss
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Python中的X[:,0]和X[:,1] - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
Python中的X[:,0]和X[:,1]X[:,0]是numpy中数组的一种写法，表示对一个二维数组，取该二维数组第一维中的所有数据，第二维中取第0个数据，直观来说，X[:,0]就是取所有 X[:,0]是numpy中数组的一种写法，表示对一个二维数组，取该二维...