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Convert Pixels to Points
...al PPI (Pixels Per Inch) of the monitor?"
There are 72 points in an inch (by definition, a "point" is defined as 1/72nd of an inch, likewise a "pica" is defined as 1/72nd of a foot). With these two bits of information you can convert from px to pt and back very easily.
...
jQuery loop over JSON result from AJAX Success?
...xt - i.e. it's not yet a JSON object.
You can convert it to a JSON object by manually using the parseJSON command or simply adding the dataType: 'json' property to your ajax call. e.g.
jQuery.ajax({
type: 'POST',
url: '<?php echo admin_url('admin-ajax.php'); ?>',
data: data,
...
How to add a “readonly” attribute to an ?
...
You can disable the readonly by using the .removeAttr;
$('#descrip').removeAttr('readonly');
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How do I check if a file exists in Java?
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By using nio in Java SE 7,
import java.nio.file.*;
Path path = Paths.get(filePathString);
if (Files.exists(path)) {
// file exist
}
if (Files.notExists(path)) {
// file is not exist
}
If both exists and notExists re...
How to get the selected radio button’s value?
...
You can do something like this:
var radios = document.getElementsByName('genderS');
for (var i = 0, length = radios.length; i < length; i++) {
if (radios[i].checked) {
// do whatever you want with the checked radio
alert(radios[i].value);
// only one radio can be ...
How can I display an image from a file in Jupyter Notebook?
...(Image.open(path))
You may need to install PIL
in Anaconda this is done by typing
conda install pillow
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What is the size of ActionBar in pixels?
...rrect.
It basically boils down to using qualifiers. The height is defined by the dimension "action_bar_default_height"
It is defined to 48dip for default. But for -land it is 40dip and for sw600dp it is 56dip.
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ImportError: No module named MySQLdb
...ip install MySQL-python yeah, that's the ticket
– Kirby
Jun 29 '16 at 23:21
This depends on Microsoft Visual C++ libra...
How to select between brackets (or quotes or …) in Vim?
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What do you mean by separated words? I tried it on "[x, y, z]" and it picked out "x, y, z"
– Tim Whitcomb
Jun 30 '09 at 6:04
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Rethrowing exceptions in Java without losing the stack trace
...n also wrap the exception in another one AND keep the original stack trace by passing in the Exception as a Throwable as the cause parameter:
try
{
...
}
catch (Exception e)
{
throw new YourOwnException(e);
}
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