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How to check if a string is a valid JSON string in JavaScript without using Try/Catch

...nd it will work in most cases, not all cases. Have a look around the line 450 in https://github.com/douglascrockford/JSON-js/blob/master/json2.js There is a regexp that check for a valid JSON, something like: if (/^[\],:{}\s]*$/.test(text.replace(/\\["\\\/bfnrtu]/g, '@'). replace(/"[^"\\\n\r]*"|t...
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Using the HTML5 “required” attribute for a group of checkboxes?

When using the newer browsers that support HTML5 (FireFox 4 for example); and a form field has the attribute required='required' ; and the form field is empty/blank; and the submit button is clicked; the browsers detects that the "required" field is empty and does not submit the form; ins...
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Vertically centering Bootstrap modal window

... This does the job : http://jsfiddle.net/sRmLV/1140/ It uses a helper-div and some custom css. No javascript or jQuery required. HTML (based on Bootstrap's demo-code) <button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">Launch demo moda...
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Any reason to clean up unused imports in Java, other than reducing clutter?

... Lakshya Goyal 34011 gold badge55 silver badges2323 bronze badges answered Jun 11 '09 at 2:48 JanuszJanusz ...
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How to change the name of an iOS app?

... 1014 Go to Targets in Xcode Get Info on your project's target (your current development name) Search...
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How to convert TimeStamp to Date in Java?

... | edited May 24 '18 at 9:30 Ojonugwa Jude Ochalifu 22.8k2525 gold badges9797 silver badges118118 bronze badges ...
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How can I select random files from a directory in bash?

... 184 Here's a script that uses GNU sort's random option: ls |sort -R |tail -$N |while read file; do ...
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C++ Best way to get integer division and remainder

...arcnicutar 160k2121 gold badges306306 silver badges343343 bronze badges 9 ...
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Best way to “negate” an instanceof

... maericsmaerics 126k3434 gold badges234234 silver badges268268 bronze badges add a...
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How to get the containing form of an input?

...ording to w3schools, the .form property of input fields is supported by IE 4.0+, Firefox 1.0+, Opera 9.0+, which is even more browsers that jQuery guarantees, so you should stick to this. If this were a different type of element (not an <input>), you could find the closest parent with closest...