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jQuery vs document.querySelectorAll
...lement("div"),
id = "__sizzle__";
div.innerHTML = "<p class='TEST'></p>";
// Safari can't handle uppercase or unicode characters when
// in quirks mode.
if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
return;
}
If th...
Python: split a list based on a condition?
... yield ss.getNext(getGood=False)
return goods(), bads()
I chose the test function to be the first argument to facilitate
partial application in the future (similar to how map and filter
have the test function as the first argument).
...
Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
...ven with more headers added. If you care about performance, use PKCS#1. My test shows 3 times faster.
– ZZ Coder
Dec 5 '14 at 18:08
5
...
Git push/clone to new server
...e server> cd /home/ec2-user
remote server> git init --bare --shared test
add ssh pub key to remote server
local> git remote add aws ssh://ec2-user@<hostorip>:/home/ec2-user/dev/test
local> git push aws master
...
How to raise a ValueError?
...od named __contains__() that does something a little different, membership-testing-wise.
def contains(char_string, char):
largest_index = -1
for i, ch in enumerate(char_string):
if ch == char:
largest_index = i
if largest_index > -1: # any found?
return l...
How JavaScript closures are garbage collected
...le above the GC has no way of knowing if the variable is used or not (code tested and works in Chrome30, FF25, Opera 12 and IE10).
The memory is released if the reference to the object is broken by assigning another value to window.f_.
In my opinion this isn't a bug.
...
Does Java have something like C#'s ref and out keywords?
...ing:
void changeString( _<String> str ) {
str.s("def");
}
void testRef() {
_<String> abc = new _<String>("abc");
changeString( abc );
out.println( abc ); // prints def
}
Out
void setString( _<String> ref ) {
str.s( "def" );
}
void testOut(){
_&...
Two single-column indexes vs one two-column index in MySQL?
...
"MySQL can use multiple-column indexes for queries that test all the columns in the index, or queries that test just the first column, the first two columns, the first three columns, and so on. If you specify the columns in the right order in the index definition, a single composi...
In-Place Radix Sort
...should be fast.
Edit:
I got curious whether this code actually works, so I tested/debugged it while waiting for my own bioinformatics code to run. The version above now is actually tested and works. For 10 million sequences of 5 bases each, it's about 3x faster than an optimized introsort.
...
How can you find the height of text on an HTML canvas?
...t, descent and height (which is just ascent + descent for convenience). To test it, it's worth having a function that draws a horizontal line:
var testLine = function(ctx, x, y, len, style) {
ctx.strokeStyle = style;
ctx.beginPath();
ctx.moveTo(x, y);
ctx.lineTo(x + len, y);
ctx.closePat...