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download file using an ajax request
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Thanks @João, I was looking for this solution from a very long time.
– Abhishek Gharai
Jan 14 at 10:27
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Java - JPA - @Version annotation
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Although @Pascal answer is perfectly valid, from my experience I find the code below helpful to accomplish optimistic locking:
@Entity
public class MyEntity implements Serializable {
// ...
@Version
@Column(name = "optlock", columnDefinition = "intege...
Remote origin already exists on 'git push' to a new repository
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"git remote rm origin" didn't work from me, if it doesn't work for you try to check with "git remote -v" this will show you if your origin has a url set, if it doesn't likely you did the init locally and are trying to push it remote, and made a misstep like me...
How do I refresh the page in ASP.NET? (Let it reload itself by code)
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Please see the answer from @gaurav below for a good way to do this in .NET using Server.TransferRequest.
– sfarbota
Jun 2 '15 at 8:28
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How do I check if a directory exists? “is_dir”, “file_exists” or both?
...k both. There might be a regular file named 'foo', which would prevent you from creating a directory name 'foo'.
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How to search a Git repository by commit message?
...way. The git-ready reflog article may be of help.
To recover your commit from the reflog: do a git checkout of the commit you found (and optionally make a new branch or tag of it for reference)
git checkout 77b1f718d19e5cf46e2fab8405a9a0859c9c2889
# alternative, using reflog (see git-ready link p...
QString to char* conversion
...ng str = my_qstring.toStdString();
const char* p = str.c_str();
It's far from optimal, but will do the work.
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Secure hash and salt for PHP passwords
...sentence with supercalifragilisticexpialidocious in it, don't prevent them from using it.
Don't strip or escape HTML and special characters in the password.
Never store your user's password in plain-text.
Never email a password to your user except when they have lost theirs, and you sent a temporary...
Share variables between files in Node.js?
...pass the shareable object
myModule.init(shares);
// The value was changed from init2 on the other file
console.log(shares.value); // 789
On the other file..
// module.js
var shared = null;
function init2(){
console.log(shared.value); // 123
shared.value = 789;
}
module.exports = {
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Percentage width in a RelativeLayout
...d set on using a RelativeLayout, you can now use the PercentRelativeLayout from support library version 23.0.0.
– neits
Aug 21 '15 at 12:36
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