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How can I clear an HTML file input with JavaScript?
...d the file input element to this new form and reset it. This way works for all browsers.
I wrote a javascript function. demo: http://jsbin.com/muhipoye/1/
function clearInputFile(f){
if(f.value){
try{
f.value = ''; //for IE11, latest Chrome/Firefox/Opera...
}catch(...
How many random elements before MD5 produces collisions?
...get a unique filename. Since S3 can't have subdirectories, I need to store all of these images in a single flat folder.
8 A...
ExpressJS - throw er Unhandled error event
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Such a common error really deserves a better error message.
– Tamlyn
Jul 10 '14 at 21:15
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chrome undo the action of “prevent this page from creating additional dialogs”
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No. But you should really use console.log() instead of alert() for debugging.
In Chrome it even has the advantage of being able to print out entire objects (not just toString()).
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App.Config Transformation for projects which are not Web Projects in Visual Studio?
... transform a web.config, but
while they feels intuitively right it's actually very verbose.
Here's two transforms, one using XSLT and the same one using the XML
Document Transform syntax/namespace. As with all things there's
multiple ways in XSLT to do this, but you get the general idea. ...
What's the difference between tilde(~) and caret(^) in package.json?
After I upgraded to latest stable node and npm , I tried npm install moment --save . It saves the entry in the package.json with the caret ^ prefix. Previously, it was a tilde ~ prefix.
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jQuery checkbox checked state changed event
...in benefit of binding to the change event over the click event is that not all clicks on a checkbox will cause it to change state. If you only want to capture events that cause the checkbox to change state, you want the aptly-named change event. Redacted in comments
Also note that I've used this.ch...
Why use @PostConstruct?
In a managed bean, @PostConstruct is called after the regular Java object constructor.
5 Answers
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Given a number, find the next higher number which has the exact same set of digits as the original n
...the right, you find the first pair-of-digits such that the left-digit is smaller than the right-digit. Let's refer to the left-digit by "digit-x". Find the smallest number larger than digit-x to the right of digit-x, and place it immediately left of digit-x. Finally, sort the remaining digits in ...
findViewByID returns null
First of all: yes, I read all the other threads on this topic. And not only those from this site... (you see, I'm a little frustrated)
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