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What is the difference between sigaction and signal?

...ion() avoids - unless you use the flags explicitly added to sigaction() to allow it to faithfully simulate the old signal() behaviour. The signal() function does not (necessarily) block other signals from arriving while the current handler is executing; sigaction() can block other signals until the...
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Get a random item from a JavaScript array [duplicate]

... not a valid substitution for Math.floor. Using round would cause accidentally referencing an undefined index, say in the case Math.random() is 0.95 and items.length is 5. Math.round(0.95*5) is 5, which would be an invalid index. floor(random) will always be zero in your example. ...
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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 = ...
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Mail multipart/alternative vs multipart/mixed

... I hit this challenge today and I found these answers useful but not quite explicit enough for me. Edit: Just found the Apache Commons Email that wraps this up nicely, meaning you don't need to know below. If your requirement is an emai...
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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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How to delete duplicate lines in a file without sorting it in Unix?

... To save it in a file we can do this awk '!seen[$0]++' merge_all.txt > output.txt – Akash Kandpal Jul 19 '18 at 11:42 5 ...
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How can I perform a str_replace in JavaScript, replacing text in JavaScript?

...erf, you can have different levels of efficiency for creating a regex, but all of them are significantly slower than a simple string replace. The regex is slower because: Fixed-string matches don't have backtracking, compilation steps, ranges, character classes, or a host of other features that ...
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Sending multipart/formdata with jQuery.ajax

...jQuery.ajax(opts); Create FormData from an existing form Instead of manually iterating the files, the FormData object can also be created with the contents of an existing form object: var data = new FormData(jQuery('form')[0]); Use a PHP native array instead of a counter Just name your file e...
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How to get ELMAH to work with ASP.NET MVC [HandleError] attribute?

... Excellent. I wasn't trying to implement Elmah at all. I was just trying to hook up my own error reporting I've used for years in a way that works well with MVC. Your code gave me a starting point. +1 – Steve Wortham Nov 18 '09 at 3:...
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How do you produce a .d.ts “typings” definition file from an existing JavaScript library?

...initelyTyped/DefinitelyTyped) first. This is a community repo full of literally thousands of .d.ts files and it's very likely the thing you're using is already there. You should also check TypeSearch (https://microsoft.github.io/TypeSearch/) which is a search engine for NPM-published .d.ts files; th...