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JavaScript style for optional callbacks

...ave some functions which occasionally (not always) will receive a callback and run it. Is checking if the callback is defined/function a good style or is there a better way? ...
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img src SVG changing the styles with CSS

... If your goal is just to change the color of the logo, and you don't necessarily NEED to use CSS, then don't use javascript or jquery as was suggested by some previous answers. To precisely answer the original question, just: Open your logo.svg in a text editor. look for fi...
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How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?

... You are so close! All you need to do is select BOTH the home and its max date time, then join back to the topten table on BOTH fields: SELECT tt.* FROM topten tt INNER JOIN (SELECT home, MAX(datetime) AS MaxDateTime FROM topten GROUP BY home) groupedtt ON tt.home = groupe...
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What happens if you static_cast invalid value to enum class?

... What is color set to according to the standard? Answering with a quote from the C++11 and C++14 Standards: [expr.static.cast]/10 A value of integral or enumeration type can be explicitly converted to an enumeration type. The value is unchanged if the origina...
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How to make a always full screen?

... I just tried it in wpf using cefsharp chromium and it works :) – adminSoftDK Apr 7 at 10:31 add a comment  |  ...
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Where can I learn jQuery? Is it worth it?

... web development on w3schools.com . It's hit or miss, I know, but the PHP and CSS sections specifically have proven very useful for reference. ...
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Map function in MATLAB?

...live without. Is there a better version out there? Is there a somewhat-standard functional programming library for MATLAB out there that I'm missing? ...
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Why does GitHub recommend HTTPS over SSH?

... HTTPS because it is the easiest to set up on the widest range of networks and platforms, and by users who are new to all this. There is no inherent flaw in SSH (if there was they would disable it) -- in the links below, you will see that they still provide details about SSH connections too: HTTP...
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Delete column from pandas DataFrame

...lass, then a = A(); del a.var works just fine... – dwanderson Oct 4 '16 at 14:24 15 @dwanderson t...
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Why does git diff on Windows warn that the “terminal is not fully functional”?

... but no such file exists in the file tree for git. The other answer worked and made sense. – Portaljacker Oct 31 '11 at 5:04 1 ...