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Prevent direct access to a php include file
...ss to that directory in your .htaccess file. To save people the trouble of Googling, if you're using Apache, put this in a file called ".htaccess" in the directory you don't want to be accessible:
Deny from all
If you actually have full control of the server (more common these days even for littl...
Can I use a function for a default value in MySql?
...D as part of their DB package, and it's not as feature rich as we'd like.
http://www.phpbuilder.com/board/showthread.php?t=10349169
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How do I determine k when using k-means clustering?
...e.
You can check the veracity of this information on the following paper:
http://www.ijarcsms.com/docs/paper/volume1/issue6/V1I6-0015.pdf
There is also another method called G-means, where your distribution follows a Gaussian Distribution or Normal Distribution.
It consists of increasing k until a...
test a file upload using rspec - rails
...ing a photo. I set up the uploaded file as an instance of ActionDispatch::Http::UploadedFile, as follows:
test "should create photo" do
setup_file_upload
assert_difference('Photo.count') do
post :create, :photo => @photo.attributes
end
assert_redirected_to photo_path(assigns(:photo)...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
.... The MyRotationDetector.aix extension is available here:
https://drive.google.com/drive/folders/0B3jsksMcCW5bLVZCNjZmQ3FSS2M
We’ve also provided the complete aia source for this demo app to save you the effort of assembling the blocks from scratch. If you load this aia file into App Inventor...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
.... The MyRotationDetector.aix extension is available here:
https://drive.google.com/drive/folders/0B3jsksMcCW5bLVZCNjZmQ3FSS2M
We’ve also provided the complete aia source for this demo app to save you the effort of assembling the blocks from scratch. If you load this aia file into App Inventor...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
.... The MyRotationDetector.aix extension is available here:
https://drive.google.com/drive/folders/0B3jsksMcCW5bLVZCNjZmQ3FSS2M
We’ve also provided the complete aia source for this demo app to save you the effort of assembling the blocks from scratch. If you load this aia file into App Inventor...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
.... The MyRotationDetector.aix extension is available here:
https://drive.google.com/drive/folders/0B3jsksMcCW5bLVZCNjZmQ3FSS2M
We’ve also provided the complete aia source for this demo app to save you the effort of assembling the blocks from scratch. If you load this aia file into App Inventor...
Is there a function to deselect all text using JavaScript?
...ll clear any selection, including within text inputs and textareas:
Demo: http://jsfiddle.net/SLQpM/23/
function clearSelection() {
var sel;
if ( (sel = document.selection) && sel.empty ) {
sel.empty();
} else {
if (window.getSelection) {
window.getS...
How to extend an existing JavaScript array with another array, without creating a new array
...r really answered the question, but it was a 2015 hack around first-hit-on-Google :)
For those that simply searched for "JavaScript array extend" and got here, you can very well use Array.concat.
var a = [1, 2, 3];
a = a.concat([5, 4, 3]);
Concat will return a copy the new array, as thread sta...