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How to save an image to localStorage and display it on the next page?
...img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var dataURL = canvas.toDataURL("image/png");
return dataURL.replace(/^data:image\/(png|jpg);base64,/, "");
}
Then, on my next page I created an image with a blank src like so:
<img src="" id="tableBanne...
Approximate cost to access various caches and main memory?
...ycles etc. The second link served the following numbers:
Core i7 Xeon 5500 Series Data Source Latency (approximate) [Pg. 22]
local L1 CACHE hit, ~4 cycles ( 2.1 - 1.2 ns )
local L2 CACHE hit, ~10 cycles ( 5.3 - 3.0 ns...
Printing hexadecimal characters in C
...ur case), your chars are being promoted to int via sign-extension.
Since c0 and 80 have a leading 1-bit (and are negative as an 8-bit integer), they are being sign-extended while the others in your sample don't.
char int
c0 -> ffffffc0
80 -> ffffff80
61 -> 00000061
Here's a solution:...
`static` keyword inside function?
...
rphv
4,60533 gold badges2626 silver badges4343 bronze badges
answered May 31 '11 at 14:22
YoshiYoshi
...
How to compare two dates in php
How to compare two dates in php if dates are in format '03_01_12' and '31_12_11' .
15 Answers
...
How to print a groupby object
...
101
Simply do:
grouped_df = df.groupby('A')
for key, item in grouped_df:
print(grouped_df.get...
How to drop a database with Mongoose?
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edited Jan 20 '14 at 15:14
Der Hochstapler
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...
nodejs get file name from absolute path?
... |
edited Mar 11 '19 at 7:06
answered Nov 6 '13 at 11:59
Vi...
How to use a variable to specify column name in ggplot
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answered Mar 10 '14 at 19:20
David RobinsonDavid Robinson
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...
How to Generate unique file names in C#
...doesn't matter, use GUIDs.
E.g.:
var myUniqueFileName = string.Format(@"{0}.txt", Guid.NewGuid());
or shorter:
var myUniqueFileName = $@"{Guid.NewGuid()}.txt";
In my programs, I sometimes try e.g. 10 times to generate a readable name ("Image1.png"…"Image10.png") and if that fails (because t...