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Create a string of variable length, filled with a repeated character

...entioned here is terse, it is about 10X slower than a string-concatenation-based implementation. It performs especially badly on large strings. See below for full performance details. On Firefox, Chrome, Node.js MacOS, Node.js Ubuntu, and Safari, the fastest implementation I tested was: function r...
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java.util.regex - importance of Pattern.compile()?

... Plus you can specify flags like case_insensitive, dot_all, etc. during compilation, by passing in an extra flags parameter – Sam Barnum Nov 12 '09 at 14:50 ...
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Javascript: Round up to the next multiple of 5

... const fn = _num =>{ return Math.round(_num)+ (5 -(Math.round(_num)%5)) } reason for using round is that expected input can be a random number. Thanks!!! ...
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How do I install pip on macOS or OS X?

... An extra warning: don't run this when a homebrew based python installed and occurs earlier in PATH (e.g. when you change /etc/paths): it would install pip with root credentials for the wrong python – acidjunk Jan 7 '16 at 13:56 ...
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How can I apply a function to every row/column of a matrix in MATLAB?

...A = [1 2 3; 4 5 6; 7 8 9] B = [0 1 2] You want a function power_by_col which returns in a vector C all the elements in A to the power of the corresponding column of B. From the above example, C is a 3x3 matrix: C = [1^0 2^1 3^2; 4^0 5^1 6^2; 7^0 8^1 9^2] i.e., C = [1 2 9; ...
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Select all text inside EditText when it gets focus

... You can also add an OnClick Method to the editText after _editText.setSelectAllOnFocus(true); and in that: _editText.clearFocus(); _editText.requestFocus(); As soon as you click the editText the whole text is selected. ...
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Create a tag in a GitHub repository

... tab Click on edit button for the release Provide name of the new tag ABC_DEF_V_5_3_T_2 and hit tab After hitting tab, UI will show this message: Excellent! This tag will be created from the target when you publish this release. Also UI will provide an option to select the branch/commit Select bra...
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Could not load file or assembly 'Newtonsoft.Json' or one of its dependencies. Manifest definition do

... answered May 16 '14 at 15:17 S__S__ 39322 silver badges88 bronze badges ...
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PHP mail function doesn't complete sending of e-mail

...les (or in a master configuration file) will enable error reporting. error_reporting(-1); ini_set('display_errors', 'On'); set_error_handler("var_dump"); See How can I get useful error messages in PHP? — this answer for more details on this. Make sure the mail() function is called It may seem...
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Should I compile with /MD or /MT?

...e gone. This is commonly known as "dll hell", see en.wikipedia.org/wiki/DLL_Hell – Adrian Grigore Sep 18 '12 at 19:24 ...