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Check image width and height before upload with Javascript
.../Initiate the JavaScript Image object.
var image = new Image();
//Set the Base64 string return from FileReader as source.
image.src = e.target.result;
//Validate the File Height and Width.
image.onload = function () {
var height = this.height;
var width = this.width;
if (height > 100 || w...
Checking if sys.argv[x] is defined
...h = sys.argv[1]
else:
blah = 'blah'
Some people prefer the exception-based approach you've suggested (eg, try: blah = sys.argv[1]; except IndexError: blah = 'blah'), but I don't like it as much because it doesn't “scale” nearly as nicely (eg, when you want to accept two or three arguments)...
How to debug heap corruption errors?
...is function call in my callstack dump (after memory corruption crash) : wow64!Wow64NotifyDebugger , what I can I do ? I still don't know what is going wrong in my application
– Guillaume07
Dec 23 '11 at 10:56
...
Sending images using Http Post
...sily. One other way would be to encode the byte stream from the image to a base64 encoded string and decode it server side. But this would be too much of a hassle in my opinion and not the way to go.
– Piro
May 30 '10 at 1:16
...
Most efficient way to reverse a numpy array
... giant chunk of the running time. What I have right now is the common view-based method:
7 Answers
...
Using Git, show all commits that are in one branch, but not the other(s)
...
+ 8a14709d08c99c36e907e47f9c4dacebeff46ecb Commit message
+ b30ccc3fb38d3d64c5fef079a761c7e0a5c7da81 Another commit message
- 85867e38712de930864c5edb7856342e1358b2a0 Yet another message
Note: The -v flag is to include the commit message along with the SHA hash.
Lines with the '+' in front are i...
How do I determine whether my calculation of pi is accurate?
... = # of decimal digits desired
p = 64-bit prime number
Compute A using base 10 arithmetic and B using binary arithmetic.
If A = B, then with "extremely high probability", the conversion is correct.
For further reading, see my blog post Pi - 5 Trillion Digits.
...
git command to show all (lightweight) tags creation dates
.... For example:
git tag -l --format='%(refname) %(taggerdate)'
Update, based on the comments below:
git tag -l --sort=-creatordate --format='%(creatordate:short): %(refname:short)'
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i...
AWS Difference between a snapshot and AMI
... AMIs (and corresponding instances):
instance-store (sometimes called S3-based). These are less common and I don't recommend them for beginners. An instance-store AMI is a copy of the root instance-store volume plus some metadata, all saved in an S3 bucket in a special format
EBS boot. This is ...
MSysGit vs. Git for Windows
...
As many answers in this post are old.
As on Nov 2015,
msysGit-based Git for Windows 1.x is now superseded by Git for Windows 2.x.
Git for Windows and git-scm both points to same download location for their binary
Download Location:
https://github.com/git-for-windows/git/releases/down...