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How long do browsers cache HTTP 301s?

... 301, 307 etc. You can open network panel in developer console in chrome. Select the network call. Right click on it and then click on Clear Browser Cache to remove the cached redirection. share | ...
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What is the difference between BIT and TINYINT in MySQL?

...deployed everything on linux, I had problems with queries that inserted or selected from tables that had BIT DATA TYPE. Bit is not safe for now. I changed to tinyint(1) and worked perfectly. I mean that you only need a value to diferentiate if it's 1 or 0 and tinyint(1) it's ok for that ...
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How to find where gem files are installed

...an check it from your command prompt by running gem help commands and then selecting the proper command: kirti@kirti-Aspire-5733Z:~$ gem help commands GEM commands are: build Build a gem from a gemspec cert Manage RubyGems certificates and signing settin...
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How do I apply a diff patch on Windows?

...ch to. It will present a dialog asking for the location of the patch file. Select the file and this should open up a little file list window that lists the changed files, and clicking each item should open a diff window that shows what the patch is about to do to that file. Good luck. ...
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How do I create an Excel (.XLS and .XLSX) file in C# without installing Microsoft Office?

...te a query and fill the data table with the data from the DB string sql = "SELECT Whatever FROM MyDBTable;"; OleDbCommand cmd = new OleDbCommand(sql, con); OleDbDataAdapter adptr = new OleDbDataAdapter(); adptr.SelectCommand = cmd; adptr.Fill(dt); con.Close(); //Add the table to the data set ds.Ta...
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How can I make setInterval also work when a tab is inactive in Chrome?

...unning a piece of code 30 times a second. This works great, however when I select another tab (so that the tab with my code becomes inactive), the setInterval is set to an idle state for some reason. ...
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postgresql port confusion 5433 or 5432?

...instances running so make sure you're connecting to the right one by using select version() and SHOW data_directory;. You can also specify a unix socket directory; check the unix_socket_directories setting of the PostgreSQL instance you wish to connect to and specify that with psql -h, e.g.psql -h...
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Why does C# not provide the C++ style 'friend' keyword? [closed]

...ly. Typically, a designer desires to expose only a few private methods to selected few other classes. For example, in a class factory pattern it may be desired that class C1 is instantiated only by class factory CF1. Therefore class C1 may have a protected constructor and a friend class factory C...
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Generating a random password in php

...keyspace A string of all possible characters * to select from * @return string */ function random_str( $length, $keyspace = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' ) { $str = ''; $max = mb_strlen($keyspace, '8bit') - 1; if ($max...
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CSS I want a div to be on top of everything

...ou need a non-static positioning scheme. Add position:relative; to a rule selecting the element you want to be on top share | improve this answer | follow | ...