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How to copy in bash all directory and files recursive?
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@AnneTheAgile - from my tests just now and according to the man pages, -r and -R don't differ.
– aaaaaa
Jan 25 '15 at 2:54
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How to change language settings in R
...env() function. My R session defaults to English, so I'll set it to French and then back again:
> Sys.setenv(LANG = "fr")
> 2 + x
Erreur : objet 'x' introuvable
> Sys.setenv(LANG = "en")
> 2 + x
Error: object 'x' not found
A list of the abbreviations can be found here.
Sys.getenv() g...
Create a CSV File for a user in PHP
...re important. To ensure good display, put doublequotes around your fields, and don't forget to replace double-quotes inside fields to double double-quotes: `echo '"'.str_replace('"','""',$record1).'","'.str_replace....
– Mala
Jul 1 '10 at 21:21
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Ignoring time zones altogether in Rails and PostgreSQL
...n parameter before being displayed to the client.
Example (in psql):
db=# SELECT timestamptz '2012-03-05 20:00+03';
timestamptz
------------------------
2012-03-05 18:00:00+01
What happened here?
I chose an arbitrary time zone offset +3 for the input literal. To Postgres, this is just one o...
Add UIPickerView & a Button in Action sheet - How?
...cause I can reuse it between 5 or 6 different screens where I all users to select from a list of options.
Create a new UITableViewController subclass, SimpleTableViewController.
Create a UITableViewController in your storyboard (embedded in a navigation controller) and set its custom class to Simp...
CSS Input with width: 100% goes outside parent's bound
...il" class="login-field">
<label for="email" style="-moz-user-select: none;-webkit-user-select: none;" onselectstart="return false;">E-mail address</label>
<span><input name="email" id="email" type="text" /></span>
</div>
<div clas...
Counting the number of True Booleans in a Python List
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That is not idiomatic and makes "abuse" of the type coercion of bool.
– Jan Segre
Sep 4 '14 at 22:19
26
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Chrome: console.log, console.debug are not working
... of today, the UI of developer tools in Google chrome has changed where we select the log level of log statements being shown in the console. There is a logging level drop down beside "Filter" text box. Supported values are Verbose, Info, Warnings and Errors with Info being the default selection.
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Sending and Parsing JSON Objects in Android [closed]
I would like to send messages in the form of JSON objects to a server and parse the JSON response from the server.
11 Answe...
Show an image preview before upload
... code snippet in the HTML example below filters out images from the user's selection and renders selected files into multiple thumbnail previews:
function handleFileSelect(evt) {
var files = evt.target.files;
// Loop through the FileList and render image files as thumbnails.
fo...