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How to take screenshot of a div with JavaScript?
...ntext('2d');
/* then use the canvas 2D drawing functions to add text, etc. for the result */
When the user clicks "Capture", do this:
window.open('', document.getElementById('the_canvas_element_id').toDataURL());
This will open a new tab or window with the 'screenshot', allowing the user to sav...
How do I pass multiple attributes into an Angular.js attribute directive?
... usage. I updated the answer, noting that you also need to use snake-case for the attributes too.
– Mark Rajcok
May 14 '13 at 17:54
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How to rename a single column in a data.frame?
.../false values. So it has the potential to change multiple column names if, for example, regular expressions are used.
– mikyatope
Dec 11 '13 at 16:21
3
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Variable is accessed within inner class. Needs to be declared final
... when you're in a time-bind as I was today.
I actually can't claim credit for this one. It was IntelliJ's recommendation! Feels a bit hacky. But doesn't seem as bad as a global variable so I thought it worth mentioning here. It's just one solution to the problem. Not necessarily the best one.
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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
...at as Matthew's answer is, I just needed a quick and dirty way of handling for checking some data. I also admit that my own knowledge is lacking right now in defining functions in SQL. I was only interested in numbers between 1 and 5 digits, so I changed the regex to E'\\d{1,5}$'.
...
jQuery AJAX file upload PHP
...loads directory. The jQuery ajax method (running in the browser) sends the form data to the server, then a script on the server handles the upload. Here's an example using PHP.
Your HTML is fine, but update your JS jQuery script to look like this:
$('#upload').on('click', function() {
var file...
List of zeros in python [duplicate]
...ist which contains only zeros? I want to be able to create a zeros list for each int in range(10)
8 Answers
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How disable Copy, Cut, Select, Select All in UITextView
... operations is to create a subclass of UITextView that overrides the canPerformAction:withSender: method to return NO for actions that you don't want to allow:
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == @selector(paste:))
return NO;
return [super canP...
How to list all methods for an object in Ruby?
... "reflections", "table_name_prefix", ...
Note that methods is a method for Classes and for Class instances.
Here's the methods that my User class has that are not in the ActiveRecord base class:
>> User.methods - ActiveRecord::Base.methods
=> ["field_types", "su_pw?", "set_login_attr...
Twig ternary operator, Shorthand if-then-else
...This is very helpful in situations like marking a button or item as active for the current page.
– Vahid Amiri
Sep 1 '16 at 9:40
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