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How can you find the height of text on an HTML canvas?
... on the canvas relative to the top, baseline and bottom:
var font = '36pt Times';
var message = 'Big Text';
ctx.fillStyle = 'black';
ctx.textAlign = 'left';
ctx.textBaseline = 'top'; // important!
ctx.font = font;
ctx.fillText(message, x, y);
// Canvas can tell us the width
var w = ctx.measureTex...
Regular expression to match a word or its prefix
I want to match a regular expression on a whole word.
4 Answers
4
...
Start / Stop a Windows Service from a non-Administrator user account
I have a WindowsService named, say, BST. And I need to give a non-Administrator user, UserA, the permissions to Start/Stop this particular service. My service runs on a variety of Windows OS, starting from Windows Server 2003 to Windows 7.
...
MySQL SELECT only not null values
...umns*/
The disadvantage of the above is that it scans the table multiple times once for each column. That may possibly be avoided by the below but I haven't tested this in MySQL.
SELECT CASE idx
WHEN 1 THEN val1
WHEN 2 THEN val2
END AS val
FROM your_table
/*CROS...
How do I switch between the header and implementation file in Xcode 4?
...
Ctrl+Cmd+Up or Down, but the shortcut seems a bit finicky and sometimes stops working, not yet sure when and why.
Be sure to FIRST click ON the actual code window...
that's the critical tip to ensure it works. Click anywhere at all on the actual code. (If you're active in one of the other ...
How to use Python's pip to download and keep the zipped files for a package?
...
last time I checked , --download option download the package with dependencies.
– Mohammad Niknam
Aug 10 '13 at 12:15
...
C++ convert hex string to signed integer
I want to convert a hex string to a 32 bit signed integer in C++.
9 Answers
9
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Easiest way to convert int to string in C++
What is the easiest way to convert from int to equivalent string in C++. I am aware of two methods. Is there any easier way?
...
What is the printf format specifier for bool?
Since ANSI C99 there is _Bool or bool via stdbool.h . But is there also a printf format specifier for bool?
8 Answer...
Zip lists in Python
...zipped
Footnotes
An object capable of returning its members one at a time (ex. list [1,2,3], string 'I like codin', tuple (1,2,3), dictionary {'a':1, 'b':2})
{key1:value1, key2:value2...}
“Unpacking” (*)
* Code:
# foo - function, returns sum of two arguments
def foo(x,y):
return x +...