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How to have jQuery restrict file types on upload?

...have jQuery limit a file upload field to only jpg/jpeg, png, and gif. I am doing backend checking with PHP already. I am running my submit button through a JavaScript function already so I really just need to know how to check for the file types before submit or alert. ...
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Unexpected value from nativeGetEnabledTags: 0

...ahead, any characters, string literal, any characters, end of line), but I don't understand why some of it is necessary. Doesn't a regex return any line that contains a match, so why do we need ^, .*, and $? Why not just (?!nativeGetEnabledTags)? (p.s. this doesn't work) – Davi...
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List View Filter Android

...}; return filter; } } Inside performFiltering() you need to do actual comparison of the search query to values in your database. It will pass its result to publishResults() method. share | ...
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EOFError: end of file reached issue with Net::HTTP

...both http and https will be similar to the following one. url = URI.parse(domain) req = Net::HTTP::Post.new(url.request_uri) req.set_form_data({'name'=>'Sur Max', 'email'=>'some@email.com'}) http = Net::HTTP.new(url.host, url.port) http.use_ssl = (url.scheme == "https") response = http.reques...
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Detect viewport orientation, if orientation is Portrait display alert message advising user of instr

... if(window.innerHeight > window.innerWidth){ alert("Please use Landscape!"); } jQuery Mobile has an event that handles the change of this property... if you want to warn if someone rotates later - orientationchange Also, a...
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How to Test Facebook Connect Locally

... It's simple enough when you find out. Open /etc/hosts (unix) or C:\WINDOWS\system32\drivers\etc\hosts. If your domain is foo.com, then add this line: 127.0.0.1 local.foo.com When you are testing, open local.foo.com in your browser and it should work. ...
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Can I have multiple :before pseudo-elements for the same element?

Is it possible to have multiple :before pseudos for the same element? 3 Answers 3 ...
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Regular expression that matches valid IPv6 addresses

...]){0,1}[0-9]) To make the above easier to understand, the following "pseudo" code replicates the above: IPV4SEG = (25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]) IPV4ADDR = (IPV4SEG\.){3,3}IPV4SEG IPV6SEG = [0-9a-fA-F]{1,4} IPV6ADDR = ( (IPV6SEG:){7,7}IPV6SEG| # 1:2:3:4:5:6:7...
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Passing an array by reference

How does passing a statically allocated array by reference work? 5 Answers 5 ...
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New line in text area

...th but new line is not reflecting while rendering the html file. How can I do that? 12 Answers ...