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How to tell if a string contains a certain character in JavaScript?

...e with a textbox where a user is supposed to enter a 24 character (letters and numbers, case insensitive) registration code. I used maxlength to limit the user to entering 24 characters. ...
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How does Facebook Sharer select Images and other metadata when sharing my URL?

...rom the source as a preview for their link. How are these images selected, and how can I ensure that any particular image on my page is always included in this list? ...
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T-SQL: Using a CASE in an UPDATE statement to update certain columns depending on a condition

... I know this is a very old question and the problem is marked as fixed. However, if someone with a case like mine where the table have trigger for data logging on update events, this will cause problem. Both the columns will get the update and log will make use...
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How to convert date to timestamp in PHP?

... This method works on both Windows and Unix and is time-zone aware, which is probably what you want if you work with dates. If you don't care about timezone, or want to use the time zone your server uses: $d = DateTime::createFromFormat('d-m-Y H:i:s', '22-09...
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Convert String to equivalent Enum value

... postfix: "", imageUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9....
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Detecting WPF Validation Errors

...ncyObject obj) { // The dependency object is valid if it has no errors and all // of its children (that are dependency objects) are error-free. return !Validation.GetHasError(obj) && LogicalTreeHelper.GetChildren(obj) .OfType<DependencyObject>() .All(IsValid); }...
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Jsoup SocketTimeoutException: Read timed out

...:171) at java.net.SocketInputStream.read(SocketInputStream.java:141) and only setting .userAgent(Opera) worked for me. So I used Connection userAgent(String userAgent) method of Connection class to set Jsoup user agent. Something like: Jsoup.connect("link").userAgent("Opera").get(); ...
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Is it possible to make anonymous inner classes in Java static?

... No, you can't, and no, the compiler can't figure it out. This is why FindBugs always suggests changing anonymous inner classes to named static nested classes if they don't use their implicit this reference. Edit: Tom Hawtin - tackline says...
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C++: what regex library should I use? [closed]

... Boost.Regex is very good and is slated to become part of the C++0x standard (it's already in TR1). Personally, I find Boost.Xpressive much nicer to work with. It is a header-only library and it has some nice features such as static regexes (regexes ...
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How to join NSArray elements into an NSString?

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