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Importing data from a JSON file into R
...fically, the file is an array of JSON objects with string fields, objects, and arrays. The RJSON Package isn't very clear on how to deal with this http://cran.r-project.org/web/packages/rjson/rjson.pdf .
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How to open files relative to home directory
...is a mere convention; indeed, if you look at the documentation for File.expand_path, it correctly interprets the tilde, but it's a feature of the function itself, not something inherent to the underlying system; also, File.expand_path requires the $HOME environment variable to be correctly set. Whic...
How to catch curl errors in PHP
...rl_error($ch);
}
curl_close($ch);
if (isset($error_msg)) {
// TODO - Handle cURL error accordingly
}
See the description of libcurl error codes here
See the description of PHP curl_errno() function here
See the description of PHP curl_error() function here
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Command to change the default home directory of a user
I would like to know whether there is any simple shell command to change the user home directory in Linux/Unix (one similar to chsh which changes the default login shell of an existing valid user) without touching the /etc/passwd file. Thanks
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Keyboard shortcut to paste clipboard content into command prompt window (Win XP) [closed]
...re a keyboard shortcut for pasting the content of the clipboard into a command prompt window on Windows XP (instead of using the right mouse button)?
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ie8 var w= window.open() - “Message: Invalid argument.”
...s in Firefox: "Job Directory 9463460", does not work in Internet Exploder, and has to be replaced by: "Job_Directory_9463460" for example (no spaces, no minus signs, no dots, it has to be a valid identifier).
share
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AngularJS Multiple ng-app within a page
I have just started learning Angular JS and created some basic samples however I am stuck with the following problem.
13 An...
PHP function to build query string from array
...it for a long time now... Your wish has come true?
– Andrew
Nov 30 '16 at 19:56
add a comment...
How can I shuffle an array? [duplicate]
...;
for (i = a.length - 1; i > 0; i--) {
j = Math.floor(Math.random() * (i + 1));
x = a[i];
a[i] = a[j];
a[j] = x;
}
return a;
}
ES2015 (ES6) version
/**
* Shuffles array in place. ES6 version
* @param {Array} a items An array containing the items.
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Use Font Awesome icon as CSS content
...Thanks to Aurelien
You need to change the font-family to Font Awesome 5 Brands OR Font Awesome 5 Free, based on the type of icon you are trying to render. Also, do not forget to declare font-weight: 900;
a:before {
font-family: "Font Awesome 5 Free";
content: "\f095";
display: inline-bloc...