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changing source on html5 video tag
... with an empty source tag, but it would always generate a failure on a javascript debug console. Now I know I can hold off on adding a 'source' until the user selects one. Till now, I didn't understand I needed to make the use CreateElement() to make a source, and then use appendChild() to add it to...
Running Windows batch file commands asynchronously
... it prevents the command from being echoed to the console. In batch scripts, sometimes you'll see echo off at the beginning which, when you execute the script, will prevent all the commands from being echoed to the console. The @ is similar but just for that single command. So, sometimes you'...
How do I use variables in Oracle SQL Developer?
...ues. As Alex points out, you can also do something similar using the "Run Script" function (F5) with the alternate EXEC syntax Alex suggests does.
variable v_count number;
variable v_emp_id number;
exec :v_emp_id := 1234;
exec select count(1) into :v_count from emp;
select *
from emp
where empn...
What is the difference between localStorage, sessionStorage, session and cookies?
...Storage are perfect for persisting non-sensitive data needed within client scripts between pages (for example: preferences, scores in games). The data stored in localStorage and sessionStorage can easily be read or changed from within the client/browser so should not be relied upon for storage of se...
How do I query if a database schema exists
As part of our build process we run a database update script as we deploy code to 4 different environments. Further, since the same query will get added to until we drop a release into production it has to be able to run multiple times on a given database. Like this:
...
bash/fish command to print absolute path to a file
...
I used this method to define log filenames for scripts: LOG=$(echo $(cd $(dirname $0); pwd)/$(basename $0 .sh).log)
– DrStrangepork
Sep 12 '14 at 13:53
...
Can I use non existing CSS classes?
...SS class" is a misnomer; class is an attribute (or a property, in terms of scripting) that you assign to HTML elements. In other words, you declare classes in HTML, not CSS, so in your case the "target" class does in fact exist on those specific elements, and your markup is perfectly valid as it is....
How to get index in Handlebars each helper?
... know this is too late. But i solved this issue with following Code:
Java Script:
Handlebars.registerHelper('eachData', function(context, options) {
var fn = options.fn, inverse = options.inverse, ctx;
var ret = "";
if(context && context.length > 0) {
for(var ...
Get the distance between two geo points
...e for all comparisons).
For more info see: http://www.movable-type.co.uk/scripts/latlong.html
There is a nice reference implementation of the Haversine formula in several languages at: http://www.codecodex.com/wiki/Calculate_Distance_Between_Two_Points_on_a_Globe
...
img tag displays wrong orientation
...pic03.jpg" width="200" alt="Cat 1" id="campic" class="camview">
<script type="text/javascript" src="exif.js"></script>
<script type="text/javascript" src="rotate.js"></script>
</body>
</html>
rotate.js:
window.onload=getExif;
var newimg = documen...