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Quickest way to compare two generic lists for differences

...want the results to be case insensitive, the following will work: List<string> list1 = new List<string> { "a.dll", "b1.dll" }; List<string> list2 = new List<string> { "A.dll", "b2.dll" }; var firstNotSecond = list1.Except(list2, StringComparer.OrdinalIgnoreCase).ToList(); v...
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How to delete a whole folder and content?

...xternalStorageDirectory()+"Dir_name_here"); if (dir.isDirectory()) { String[] children = dir.list(); for (int i = 0; i < children.length; i++) { new File(dir, children[i]).delete(); } } share ...
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How to debug PDO database queries?

Before moving to PDO, I created SQL queries in PHP by concatenating strings. If I got database syntax error, I could just echo the final SQL query string, try it myself on the database, and tweak it until I fixed the error, then put that back into the code. ...
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Get escaped URL parameter

...g for a jQuery plugin that can get URL parameters, and support this search string without outputting the JavaScript error: "malformed URI sequence". If there isn't a jQuery plugin that supports this, I need to know how to modify it to support this. ...
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Why does typeof NaN return 'number'?

...al) is true, return "undefined". Let val be GetValue(val). Return a String determined by Type(val) according to Table 20. ​ Table 20 — typeof Operator Results ================================================================== | Type of val | ...
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HTML.ActionLink method

... ) This uses the following method ActionLink signature: public static string ActionLink(this HtmlHelper htmlHelper, string linkText, string controllerName, string actionName, ...
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Best way to represent a fraction in Java?

... 0x10000000000000L).) * * NOTE: In many cases, BigFraction(Double.toString(d)) may give a result * closer to what the user expects. */ public BigFraction(double d) { if(Double.isInfinite(d)) throw new IllegalArgumentException("double val is infinite"); if(Double.isNaN(...
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Javascript checkbox onChange

... Here's a JsFiddle where all the different ways can be tested: click, keyboard, label and accesskey. They all trigger the event in Firefox. – Roman Starkov May 8 '15 at 12:59 ...
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writing some characters like '

...al character follow Moss guide: How can I write character & in android strings.xml by used Unicode definition: Example: <string name="item_unknown">\u003c Item Unknown \u003e</string> which present in string : < Item Unknown > ...
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Base64 Decoding in iOS 7+

I have Encoded text( NSString ) using NSData Class new API which is Added in iOS7. 2 Answers ...