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CSS: how do I create a gap between rows in a table?

... All you need: table { border-collapse: separate; border-spacing: 0 1em; } That assumes you want a 1em vertical gap, and no horizontal gap. If you're doing this, you should probably also look at controlling your li...
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Open Facebook page from Android app?

...link to a Facebook profile in the official Facebook app (if the app is installed, of course). For iPhone, there exists the fb:// URL scheme, but trying the same thing on my Android device throws an ActivityNotFoundException . ...
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How can I hash a password in Java?

... You can actually use a facility built in to the Java runtime to do this. The SunJCE in Java 6 supports PBKDF2, which is a good algorithm to use for password hashing. byte[] salt = new byte[16]; random.nextBytes(salt); KeySpec spec = new...
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Dashed line border around UIView

...t@2x.png and test@3x.png with size of 240x240 and 360x360 which is used in all the apple device automatically with it's related name. (i.e. test.png is use in iPhone 4, test@2x will useful for iPhone 4s, 5, 5s, 6, 6s and twst@3x will useful for iPhone 6 plus, 6s plus. – Paras J...
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“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?

...wness, and/or kurtosis of set of values, but that does NOT require storing all the values in memory at once? 13 Answers ...
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Stop Excel from automatically converting certain text values to dates

...string literal is the content of the string. Thus the quotation marks magically disappear. You can put =1+2+3 and get the value 6 after CSV import. The formula itself is not destroyed in the import process. – lokori Oct 8 '14 at 13:16 ...
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No visible cause for “Unexpected token ILLEGAL”

... code is parsed by the JavaScript interpreter, it gets broken into pieces called "tokens". When a token cannot be classified into one of the four basic token types, it gets labelled "ILLEGAL" on most implementations, and this error is thrown. The same error is raised if, for example, you try to run...
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What is the (function() { } )() construct in JavaScript?

...tion expression. Then look at the last pair (function(){})();, this is normally added to an expression to call a function; in this case, our prior expression. This pattern is often used when trying to avoid polluting the global namespace, because all the variables used inside the IIFE (like in any ...
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How to convert a String to its equivalent LINQ Expression Tree?

...nking as a Where clause. If necessary, put it inside a list/array just to call .Where(string) on it! i.e. var people = new List<Person> { person }; int match = people.Where(filter).Any(); If not, writing a parser (using Expression under the hood) isn't hugely taxing - I wrote one similar (a...
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Inserting a tab character into text using C#

...re than one TextBox are displayed and that alignment must be respected for all TextBox, the ONLY "\t" or vbTab solution will display something that is NOT ALWAYS correctly aligned. Example in VB.Net: Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load TextBox1.Text = ...