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event.preventDefault() vs. return false
... event handlers for parent elements). Default = browser code (links, text selection, etc.)
– Bob Stein
Jul 28 '13 at 14:49
5
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How do I remove a file from the FileList
...
If you want to delete only several of the selected files: you can't. The File API Working Draft you linked to contains a note:
The HTMLInputElement interface
[HTML5] has a readonly FileList
attribute, […]
[emphasis mine]
Reading a bit of the HTML 5 Work...
How to theme the ENTIRE Xcode IDE to light-on-dark?
...ground by going into preferences ⌘., then go to Fonts & Colors, then select the Console. Now you can edit its background:
Just be sure to edit the font colors of the various input and outputs texts if you choose black. By default all of the input/output fonts are black, only the console pro...
Rails: How to change the title of a page?
...In rails 3 content_for is smart enough to work correctly with caching (see selected answer).
– opsb
Nov 15 '11 at 10:41
4
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Bash command to sum a column of numbers [duplicate]
... With bc -l you can even add up float numbers. With cut you can select columns from the input: cat input.txt | cut -d ' ' -f 8 | paste -sd+ | bc -l will add all float numbers in column 8 of the input (space being the field separator).
– Arne
Sep 24 '...
Real-world examples of recursion [closed]
...( because you want to stop this fast ).
After processing a given person, select the person from the front of the queue and apply immunization if needed. Get all their contacts previously unvisited, and then test to see if they're infected.
Repeat until the queue of infected people becomes 0, and...
ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
... table. Following query would be helpful to fetch those non-matching rows:
SELECT child_table.*
FROM child_table
LEFT JOIN parent_table
ON parent_table.referenced_column = child_table.referencing_column
WHERE parent_table.referenced_column IS NULL
Now, you can generally do one (or more) of th...
jQuery Tips and Tricks
...sts
if ($("#someDiv").length)
{
// It exists...
}
Writing your own selectors
$.extend($.expr[":"], {
over100pixels: function (e)
{
return $(e).height() > 100;
}
});
$(".box:over100pixels").click(function ()
{
alert("The element you clicked is over 100 pixels heig...
“Active Directory Users and Computers” MMC snap-in for Windows 7?
...indows Features dialog box, expand Remote Server
Administration Tools.
Select the remote management tools that you want to install.
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Using .gitignore to ignore everything but specific directories
...at I have a bunch of WordPress websites in my git repo, of which I want to selectively commit only the content of my themes folders, while ignoring the rest of the redundant files found in WordPress.
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