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What is the difference between background and background-color

... @LeventDivilioglu As tester said : These kind of tests are cheats and always going to be somewhat inaccurate from the real world github.com/mdo/css-perf#updated-conclusions-from-averages – l2aelba May 19 '17...
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Bogus foreign key constraint fail

... the issue. The out of sync dictionary stands out as a likely reason. I'll test it day and see what SHOW ENGINE INNODB STATUS reports. – Álvaro González Jul 27 '10 at 6:29 3 ...
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PostgreSQL error: Fatal: role “username” does not exist

...as never changed after PostgreSQL installation, by default it is postgres (tested on Linux and Windows). – silvioprog Mar 7 '19 at 15:22 ...
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horizontal scrollbar on top and bottom of table

...y small and somewhat annoying increment in the position of the scrollbar. Tested: 4 versions of Firefox (100% affected), 4 versions of Chrome (50% affected). Here's my jsfiddle. You can get around this with by having an on/off (true/false) var that allows only one onScroll() event to trigger at a ...
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How do you do a simple “chmod +x” from within python?

...gnore') See also: How can I get the default file permissions in Python? Tested in Ubuntu 16.04, Python 3.5.2. share | improve this answer | follow | ...
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Does the Java &= operator apply & or &&?

...side, the trade-off is between the cost of evaluating b, and the cost of a test and branch of the value of a, and the potential saving of avoiding an unnecessary assignment to a. The analysis is not straight-forward, but unless the cost of calculating b is non-trivial, the performance difference b...
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The definitive guide to form-based website authentication [closed]

...r certificate-based encryption scheme (for example, TLS) or a proven & tested challenge-response scheme (for example, the Diffie-Hellman-based SRP). Any other method can be easily circumvented by an eavesdropping attacker. Of course, if you are willing to get a little bit impractical, you could ...
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How can I strip all punctuation from a string in JavaScript using regex?

...lace(/\s{2,}/g, " ") to replace extra spaces if you need to do so. You can test the regex in http://rubular.com/ .replace(/[^A-Za-z0-9\s]/g,"").replace(/\s{2,}/g, " ") Update: Will only work if the input is ANSI English. ...
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Disable, but not uninstall Resharper 4.x onwards

... (remove the check from check box on the left). In ReSharper 5 and above (tested up to version 7.0.1), this is how you can suspend ReSharper from the Tools > Options > Resharper share | impr...
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Rails: How to change the text on the submit button in a Rails Form

... By the way it was mentioned by @cassi.lup in comment to accepted answer. Tested on Rails 4.2.3. share | improve this answer | follow | ...