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How to calculate md5 hash of a file using javascript
... Thank for the info regarding MS Edge! I work for a company. And you know, that customers often use old software and how hard it is to convince them to update their software. I just wanted to point out, that one has to be careful using readAsBinaryString() as it is not supported by older browse...
How can I make a div stick to the top of the screen once it's been scrolled to?
...
your edit does indeed fill the needs of the question now but you still have a problem when the page scrolls back to the top again. you could after reaching the element scrollTop store it somewhere, and when the page hits that position again (when scrolling upwards) change the ...
How to bind to a PasswordBox in MVVM
...other client machine text. Don't keep clear text passwords in memory.
I know this breaks the MVVM pattern, but you shouldn't ever bind to PasswordBox.Password Attached DP, store your password in the ViewModel or any other similar shenanigans.
If you're looking for an over-architected solution, he...
How can I exclude directories from grep -R?
...gt;/dev/null \;
SOLUTION 2 (using the --exclude-dir option of grep):
You know this solution already, but I add it since it's the most recent and efficient solution. Note this is a less portable solution but more human-readable.
grep -R --exclude-dir=node_modules 'some pattern' /path/to/search
To e...
When to use: Java 8+ interface default method, vs. abstract method
...venience methods, thus constraining the implementor to single inheritance, now you can have a really clean design with just the interface and a minimum of implementation effort forced on the programmer.
The original motivation to introduce default methods to Java 8 was the desire to extend the Coll...
GCM with PHP (Google Cloud Messaging)
...t i dont receive any message on the phone. I want to debug it, but i dont know why my $result is always empty...
– Bertrand
Jul 5 '12 at 11:49
9
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How do you query for “is not null” in Mongo?
...: 1 }
{ "_id" : ObjectId("544540f11b5cf91c4893eb99"), "otherField" : 2 }
Now, create the sparse index on imageUrl field:
db.foo.ensureIndex( { "imageUrl": 1 }, { sparse: true } )
{
"createdCollectionAutomatically" : false,
"numIndexesBefore" : 1,
"numIndexesAfter" : 2,
"ok" : 1
}
...
Using Django time/date widgets in custom form
...his but having finally got date/time widget appear and populating field am now going to take it out because despite having required=False in the form field it now shows the message "Enter a valid date/time." for my not required field if I leave it blank. Back to jquery for me.
...
How to prevent long words from breaking my div?
...element
Another option is to inject <wbr>, a former IE-ism, which is now in HTML5:
averyvery<wbr>longword
Breaks with no hyphen:
averyvery
longword
You can achieve the same with zero-width space character &#8203; (or &#x200B).
FYI there's also CSS hyphens: auto supported by l...
How do I call Objective-C code from Swift?
...ible to Objective-C by using the @objc prefix, this is no longer possible. Now, to be visible in Objective-C, the Swift object must either be a class conforming to NSObjectProtocol (easiest way to do this is to inherit from NSObject), or to be an enum marked @objc with a raw value of some integer ty...