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How to save an HTML5 Canvas as an image on a server?
... a hidden field. After that I submit the form.
document.getElementById('my_hidden').value = canvas.toDataURL('image/png');
document.forms["form1"].submit();
4) When the form is submited I have this small php script:
<?php
$upload_dir = somehow_get_upload_dir(); //implement this function you...
UITextView that expands to text using auto layout
...nstraint for UITextView's height, and I saved it in an instance variable.
_descriptionHeightConstraint = [NSLayoutConstraint constraintWithItem:_descriptionTextView
attribute:NSLayoutAttributeHeight
relatedBy:NSLayoutRelationEqual
...
Is “else if” a single keyword?
...nt i;
}
So how is your slightly extended example parsed?
if
statement_0;
else
if
statement_1;
else
if
statement_2 ;
will be parsed like this:
if
{
statement_0;
}
else
{
if
{
statement_1;
}
else
{
if
{
statement_2 ;
...
Error: No default engine was specified and no extension was provided
...ne);
this.engine = engines[ext] || (engines[ext] = require(ext.slice(1)).__express);
this.path = this.lookup(name);
}
You must have installed a default engine
Express search default layout view by program.template as you can read below:
mkdir(path + '/views', function(){
switch (progr...
Collection that allows only unique items in .NET?
...T> List
{
get;
private set;
}
List<T> _internalList;
public static UniqueList<T> NewList
{
get
{
return new UniqueList<T>();
}
}
private UniqueList()
{
_internalList = new L...
Decorators with parameters?
I have a problem with the transfer of variable 'insurance_mode' by the decorator. I would do it by the following decorator statement:
...
How do I set a variable to the output of a command in Bash?
... which could be sourced for use or just run for demo.)
Sample:
source shell_connector.sh
tty
/dev/pts/20
ps --tty pts/20 fw
PID TTY STAT TIME COMMAND
29019 pts/20 Ss 0:00 bash
30745 pts/20 R+ 0:00 \_ ps --tty pts/20 fw
newConnector /usr/bin/bc "-l" '3*4' 12
ps --tty p...
$(document).ready equivalent without jQuery
...) {
return;
}
readyList = ReadyObj._Deferred();
// Catch cases where $(document).ready() is called after the
// browser event has already occurred.
if ( document.readyState === "complete" ) {
// Handle it as...
Can I run multiple programs in a Docker container?
... you to sepcify behaviour for each process such as autorestart=true, stdout_logfile, stderr_logfile etc. Take a look at docs.docker.com/engine/admin/using_supervisord
– Andreas Lundgren
Aug 12 '16 at 7:39
...
Build the full path filename in Python
...
This works fine:
os.path.join(dir_name, base_filename + "." + filename_suffix)
Keep in mind that os.path.join() exists only because different operating systems use different path separator characters. It smooths over that difference so cross-platform code d...