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What are five things you hate about your favorite language? [closed]

... PHP: 1) Forces me to make unnecessary variables: $parts = explode('|', $string); $first = $parts[0]; 2) An implementation of lambdas so lame it is roughly equivalent to using eval() and so hideously wrong I have never use...
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Prevent double submission of forms in jQuery

...safeform').safeform({ timeout: 5000, // disable next submission for 5 sec submit: function() { // You can put validation and ajax stuff here... // When done no need to wait for timeout, re-enable the form ASAP $(this).safeform('complete'); return false; ...
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Original purpose of ? [closed]

...of the record to be deleted in this case, it will be id For example <?php if(isset($_POST['delete_action'])) { mysqli_query($connection, "DELETE FROM table_name WHERE record_id = ".$_POST['row_to_be_deleted']); /...
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How can I upload files asynchronously?

... $.ajax({ // Your server script to process the upload url: 'upload.php', type: 'POST', // Form data data: new FormData($('form')[0]), // Tell jQuery not to process data or worry about content-type // You *must* include these options! cache: false, contentType: f...
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Android: Test Push Notification online (Google Cloud Messaging) [closed]

... Found a very easy way to do this. Open http://phpfiddle.org/ Paste following php script in box. In php script set API_ACCESS_KEY, set device ids separated by coma. Press F9 or click Run. Have fun ;) <?php // API access key from Google API's Console define( 'API_...
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R object identification

...r showMethods, showClass, etc. Patrick Burns' R Inferno has a pretty good section on this (sec #7). EDIT: Dirk and Hadley mention str(obj) in their answers. It really is much better than any of the above for a quick and even detailed peek into an object. ...
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Clear the cache in JavaScript

...ry hour, or every week, you may cache according to file data. Example (in PHP): <script src="js/my_script.js?v=<?=md5_file('js/my_script.js')?>"></script> or even use file modification time: <script src="js/my_script.js?v=<?=filemtime('js/my_script.js')?>"></scr...
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How to map and remove nil values in Ruby

...086 ( 6.956135) # --------------------------------------- total: 23.093686sec # # user system total real # select + map 8.550637 0.033190 8.583827 ( 8.597627) # map + compact 7.263667 0.131180 7.394847 ( 7.405570) # filter_map 6.761388 0.01...
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Why is  appearing in my HTML? [duplicate]

... Try: <?php // Tell me the root folder path. // You can also try this one // $HOME = $_SERVER["DOCUMENT_ROOT"]; // Or this // dirname(__FILE__) $HOME = dirname(__FILE__); // Is this a Windows host ? If it is, change this line to $W...
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HMAC-SHA1 in bash

...ution, but mainly to prove that the results are the same, we can also call PHP's hmac_sha1() from the command line: [me@home]$ echo '<?= hash_hmac("sha1", "value", "key") ?>' | php 57443a4c052350a44638835d64fd66822f813319 ...