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How to take screenshot of a div with JavaScript?
...his:
var c = document.getElementById('the_canvas_element_id');
var t = c.getContext('2d');
/* then use the canvas 2D drawing functions to add text, etc. for the result */
When the user clicks "Capture", do this:
window.open('', document.getElementById('the_canvas_element_id').toDataURL());
Thi...
What is a “web service” in plain English?
I've been reading about "web services" here on SO, on Wikipedia, Google, etc., and I don't quite understand what they are. What is the plain English definition/description?
...
Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...
...到错误908（权限接收短信）的讨论。一位用户遇到了这个问题，并询问是否有人知道如何解决。其他用户提供了一些可能的解决方案，包括检查应用程序权限设置、确保手机上的权限设置正确、重新编译应用程序等。有人建议检...
Measuring the distance between two coordinates in PHP
... Just put a comment on previous line and say // M_PI / 180 ... etc. I don't know why it would make it difficult to maintain. It is not something you will ever change.
– Evren Yurtesen
Dec 5 '17 at 16:56
...
json_decode to array
...json_decode($jsondata, true);
foreach ($arr as $k=>$v){
echo $v; // etc.
}
If $jsondata is ever returned as an empty string (as in my experience it often is), json_decode will return NULL, resulting in the error Warning: Invalid argument supplied for foreach() on line 3. You could add a lin...
Java associative-array
How can I create and fetch associative arrays in Java like I can in PHP?
15 Answers
15...
Detail change after Git pull
...therwise the change is shown "backwards", i.e. insertions become deletions etc.
– ultracrepidarian
Mar 11 '14 at 16:46
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Recommended Vim plugins for JavaScript coding? [closed]
...es using your favorite package-manager (Ubuntu's apt-get, Mac's home brew, etc.):
exuberant-ctags
NOTE: After installing make sure running ctags actually runs exuberant-ctags and not the OS's preinstalled ctags. You can find out by executing ctags --version.
node (Node.js)
Clone DoctorJS from ...
Is there an API to get bank transaction and bank balance? [closed]
...vide both authentication API for several banks and REST-based transaction fetching endpoints.
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Cookies vs. sessions
... reach and get your information (because of 1)
Expiration can be set (see setcookies() for more information)
Session is preferred when you need to store short-term information/values, such as variables for calculating, measuring, querying etc.
Cookies is preferred when you need to store long-term...