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jQuery/JavaScript: accessing contents of an iframe
...ern for implementing this proxy solution. Any links to example or tutorial etc? I have tried to search but couldn't find any.
– Umer Hayat
Jun 27 '12 at 12:26
3
...
How can I add new array elements at the beginning of an array in Javascript?
... [thingToInsertToFront].concat(originalArray).reduce(fn).reverse().map(fn) etc... If you use unshift, you can't do that chaining because all you get back is the length.
– StJohn3D
Sep 23 '16 at 18:27
...
How to avoid null checking in Java?
... if your method just passes the value on, and the next method passes it on etc. it could get problematic. In that case you may want to check the argument as above.
If null is allowed
This really depends. If find that I often do something like this:
if (object == null) {
// something
} else {
...
Adding a new entry to the PATH variable in ZSH
... double quotes around the entries i.e. PATH="/home/david/pear/bin:/usr/bin:etc" to PATH=/home/david/pear/bin:/usr/bin:etc for it to stay in zshrc.
– a7omiton
Feb 7 '15 at 15:01
...
How to paste yanked text into the Vim command line
...een deleted goes to register 1, what was in register 1 goes to register 2, etc.),
" (default register, also known as unnamed register. This is where the " comes in Ctrl-R, "),
a to z for your own use (capitalized A to Z are for appending to corresponding registers).
_ (acts like /dev/null (Unix) or ...
Could not load file or assembly 'System.Web.Http 4.0.0 after update from 2012 to 2013
... Be sure to add the needed update to any dependent projects such as tests, etc.
– DeeArgee
Feb 9 '15 at 15:40
I did th...
Handlebars/Mustache - Is there a built in way to loop through the properties of an object?
...e object "top level" and another not? what are "pre-defined" keys exactly? etc), so you might want to revisit these concepts.
– Jon
Feb 11 '14 at 9:42
1
...
Where can I find the Java SDK in Linux after installing it?
...put like this:
lrwxrwxrwx 1 root root 22 Feb 9 10:59 /usr/bin/java -> /etc/alternatives/java
Third:
ls -l /etc/alternatives/java
output is the JDK pa
How to check if element has any children in Javascript?
...t to know about child elements (as opposed to text nodes, attribute nodes, etc.) on all modern browsers (and IE8 — in fact, even IE6) you can do this: (thank you Florian!)
if (element.children.length > 0) { // Or just `if (element.children.length)`
// It has at least one element as a chil...
PHP and Enumerations
...ract class DaysOfWeek
{
const Sunday = 0;
const Monday = 1;
// etc.
}
$today = DaysOfWeek::Sunday;
However, other use cases may require more validation of constants and values. Based on the comments below about reflection, and a few other notes, here's an expanded example which may be...