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Table Header Views in StoryBoards

...e did I mention a section header? The section in the methods are necessary from the framework. Every TableView has at least one section if you don't know that. Just pass section 0 If you don't have sections. – Badr May 20 at 17:39 ...
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RegEx to make sure that the string contains at least one lower case char, upper case char, digit and

...the regex to make sure that a given string contains at least one character from each of the following categories. 3 Answer...
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Do we still need end slashes in HTML5?

...elements", and does not address closing slashes in void elements). Citing from http://www.w3.org/TR/html5/syntax.html#start-tags (number 6): Then, if the element is one of the void elements, or if the element is a foreign element, then there may be a single "/" (U+002F) character. This characte...
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is_file or file_exists in PHP

...>\n"; } Edit: @Tivie thanks for the comment. Changed number of cycles from 1000 to 10k. The result is: when the file exists: is_file x 10000 1.5651218891144 seconds file_exists x 10000 1.5016479492188 seconds is_readable x 10000 3.7882499694824 seconds when the file does not exist: is...
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What's the difference between “Request Payload” vs “Form Data” as seen in Chrome dev tools Network t

...dy. That’s all it can do because it has no idea where the data is coming from. If you submit a HTML-Form with method="POST" and Content-Type: application/x-www-form-urlencoded or Content-Type: multipart/form-data your request may look like this: POST /some-path HTTP/1.1 Content-Type: application...
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Inverse dictionary lookup in Python

... However, it is probably twice as slow as yours, because it creates a list from the dict twice. key = dict_obj.keys()[dict_obj.values().index(value)] Or if you prefer brevity over readability you can save one more character with key = list(dict_obj)[dict_obj.values().index(value)] And if you p...
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Javascript: How to detect if browser window is scrolled to bottom?

...pted answer is that window.scrollY is not available in IE. Here is a quote from mdn regarding scrollY: For cross-browser compatibility, use window.pageYOffset instead of window.scrollY. And a working snippet: window.onscroll = function(ev) { if ((window.innerHeight + window.pageYOffset ) &...
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How to make an AJAX call without jQuery?

...) method allow you to make web requests. For example, to request some json from /get-data: var opts = { method: 'GET', headers: {} }; fetch('/get-data', opts).then(function (response) { return response.json(); }) .then(function (body) { //doSomething with body; }); See here for more...
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Init method in Spring Controller (annotation version)

... If you need to use the User from SecurityContextHolder, at PostConstruct moment it's not initialized. It's need to be used like a stateless method. (getUser()... { return Security...user(); } – Joao Polo Nov 24 '15...
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Write to UTF-8 file in Python

... Warning: open and open is not the same. If you do "from codecs import open", it will NOT be the same as you would simply type "open". – Apache Aug 20 '13 at 13:19 ...