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How do you performance test JavaScript code?

...rendered all at once, so it felt slow to the user. We 'fixed' this, not by switching to a faster component, or optimizing some method, but by rendering the data first, then rendering the grids with a setTimeout. So, the information appeared first, then the grids would pop into place a second late...
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Best timestamp format for CSV/Excel?

...ps in a CSV file such that they can be parsed accurately and unambiguously by Excel with minimal user intervention? 11 Answ...
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Rotating and spacing axis labels in ggplot2

... q + theme(axis.text.x = element_text(angle = 90, vjust = 0.5, hjust=1)) By default, the axes are aligned at the center of the text, even when rotated. When you rotate +/- 90 degrees, you usually want it to be aligned at the edge instead: The image above is from this blog post. ...
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How to restart Jenkins manually?

...To restart Jenkins manually, you can use either of the following commands (by entering their URL in a browser): (jenkins_url)/safeRestart - Allows all running jobs to complete. New jobs will remain in the queue to run after the restart is complete. (jenkins_url)/restart - Forces a restart without...
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What does java:comp/env/ do?

...e policies might allow you to name users and organizations/departments by using names such as "java:user/alice" and "java:org/engineering". In the "comp" context, there are two bindings: "env" and "UserTransaction". The name "env" is bound to a subtree that is reserved for the com...
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What's the best way to do “application settings” in Android? [closed]

...c to an activity. Shared Preferences: The shared preferences can be used by all the components (activities, services etc) off the applications. Activity handled preferences: These preferences can only be used with in the activity and can not be used by other components of the application. Shared...
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Use of def, val, and var in scala

...ngs, the internal state of a val can be changed but the object referred to by a val cannot. A val is not a constant. – pferrel Apr 24 '14 at 21:20 5 ...
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Set 4 Space Indent in Emacs in Text Mode

...in .emacs file: (custom-set-variables ;; custom-set-variables was added by Custom. ;; If you edit it by hand, you could mess it up, so be careful. ;; Your init file should contain only one such instance. ;; If there is more than one, they won't work right. '(tab-stop-list (quote (4 8 12 16...
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Send and receive messages through NSNotificationCenter in Objective-C?

...ication" // notifications using the receiveTestNotification: selector. By // specifying object:nil, we tell the notification center that we are not // interested in who posted the notification. If you provided an actual // object rather than nil, the notification center will only not...
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new Date() works differently in Chrome and Firefox

I want to convert date string to Date by javascript, use this code: 5 Answers 5 ...