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Draw on HTML5 Canvas using a mouse
...clientX - canvas.offsetLeft;
currY = e.clientY - canvas.offsetTop;
flag = true;
dot_flag = true;
if (dot_flag) {
ctx.beginPath();
ctx.fillStyle = x;
ctx.fillRect(currX, currY, 2, 2);
...
How to use a variable for a key in a JavaScript object literal?
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{ thetop : 10 } is a valid object literal. The code will create an object with a property named thetop that has a value of 10. Both the following are the same:
obj = { thetop : 10 };
obj = { "thetop" : 10 };
In ES5 and earlie...
Generating random whole numbers in JavaScript in a specific range?
...ess chance to roll due to the [0,1) Interval.
– Christoph
Dec 22 '12 at 9:18
15
I've created a JS...
Drop all the tables, stored procedures, triggers, constraints and all the dependencies in one sql st
...CLARE @name VARCHAR(128)
DECLARE @SQL VARCHAR(254)
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 ORDER BY [name])
WHILE @name is not null
BEGIN
SELECT @SQL = 'DROP PROCEDURE [dbo].[' + RTRIM(@name) +']'
EXEC (@SQL)
PRINT 'Dropped Procedure: ' +...
Bootstrap 3 modal vertical position center
...}
And adjust a little bit .fade class to make sure it appears out of the top border of window, instead of center
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Android: Clear the back stack
...ng FLAG_ACTIVITY_NEW_TASK as described in the docs for FLAG_ACTIVITY_CLEAR_TOP:
This launch mode can also be used to
good effect in conjunction with
FLAG_ACTIVITY_NEW_TASK: if used to
start the root activity of a task, it
will bring any currently running
instance of that task to the
...
Best way to center a on a page vertically and horizontally? [duplicate]
... main trick in this demo is that in the normal flow of elements going from top to bottom, so the margin-top: auto is set to zero. However, an absolutely positioned element acts the same for distribution of free space, and similarly can be centered vertically at the specified top and bottom (does not...
What's the UIScrollView contentInset property for?
...tsMake(0, 0, 0, 7.0);
Swift 5.0
aScrollView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 7.0)
Here's a good iOS Reference Library article on scroll views that has an informative screenshot (fig 1-3) - I'll replicate it via text here:
_|←_cW_→_|_↓_
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------...
Table header to stay fixed at the top when user scrolls it out of view with jQuery
I am trying to design an HTML table where the header will stay at the top of the page when AND ONLY when the user scrolls it out of view. For example, the table may be 500 pixels down from the page, how do I make it so that if the user scrolls the header out of view (browser detects its no longer i...
How to scroll HTML page to given anchor?
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You can use jQuerys .animate(), .offset() and scrollTop. Like
$(document.body).animate({
'scrollTop': $('#anchorName2').offset().top
}, 2000);
example link: http://jsbin.com/unasi3/edit
If you don't want to animate use .scrollTop() like
$(document.body).scrollTop($(...