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What special characters must be escaped in regular expressions?

...x Flavors (PCRE) Includes C, C++, Delphi, EditPad, Java, JavaScript, Perl, PHP (preg), PostgreSQL, PowerGREP, PowerShell, Python, REALbasic, Real Studio, Ruby, TCL, VB.Net, VBScript, wxWidgets, XML Schema, Xojo, XRegExp.PCRE compatibility may vary     Anywhere: . ^ $ * + - ? ( ) [ ] { } \ | Leg...
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How do I pass an extra parameter to the callback function in Javascript .filter() method?

...ith(wordToCompare) { return function(element) { return element.indexOf(wordToCompare) === 0; } } addressBook.filter(startsWith(wordToCompare)); Another option would be to use Function.prototype.bind [MDN] (only available in browser supporting ECMAScript 5, follow a link for a shim...
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How can I mark “To Do” comments in Xcode?

...RK and #warning aren't the same as // TODO and so that doesn't answer your question. – trojanfoe Jun 4 '13 at 11:55 ...
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Difference between the Apache HTTP Server and Apache Tomcat? [closed]

...r. A servlet, at the end, is a Java class. JSP files (which are similar to PHP, and older ASP files) are generated into Java code (HttpServlet), which is then compiled to .class files by the server and executed by the Java virtual machine. ...
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How to perform case-insensitive sorting in JavaScript?

...11 or Safari). the solution mentioned here is very good, but would still require backporting/polyfill for some browsers. – 3k- Apr 6 '15 at 14:18 2 ...
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The best way to remove duplicate values from NSMutableArray in Objective-C?

... over a copy of the array: NSArray *copy = [mutableArray copy]; NSInteger index = [copy count] - 1; for (id object in [copy reverseObjectEnumerator]) { if ([mutableArray indexOfObject:object inRange:NSMakeRange(0, index)] != NSNotFound) { [mutableArray removeObjectAtIndex:index]; } ...
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What is the best way to tell if a character is a letter or number in Java without using regexes?

What is the best and/or easiest way to recognize if a string.charAt(index) is an A-z letter or a number in Java without using regular expressions? Thanks. ...
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Is there a built-in function to print all the current properties and values of an object?

So what I'm looking for here is something like PHP's print_r function. 25 Answers 25...
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Origin null is not allowed by Access-Control-Allow-Origin

...t to a server from a local html file and found a solution using Chrome and PHP. (no Jquery) Javascripts: var x = new XMLHttpRequest(); if(x) x.onreadystatechange=function(){ if (x.readyState === 4 && x.status===200){ console.log(x.responseText); //Success }else{ ...
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Foreach loop, determine which is the last iteration of the loop

...ch: foreach (Item result in Model.Results) { if (Model.Results.IndexOf(result) == Model.Results.Count - 1) { // this is the last item } } share | improve this answer ...