大约有 44,000 项符合查询结果（耗时：0.0618秒） [XML]
TypeError: ObjectId('') is not JSON serializable
...er querying an aggregated function on document using Python, It returns valid response and i can print it but can not return it.
...
Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...rmula:
set = ( address / lineSize ) % numberOfsets
This sort of formula ideally gives a uniform distribution across the sets, because each memory address is as likely to be read (I said ideally).
It's clear that overlaps can occur. In case of a cache miss, the memory is read in the cache and the...
Open popup and refresh parent page on close popup
...
I didn't know window.opener, thanks! I always put the caller window in a variable in the contentWindow of the child. :-/
– kay
May 29 '12 at 2:36
...
how to debug the js in jsfiddle
I am looking at this jsfiddle: http://jsfiddle.net/carpasse/mcVfK/
It works fine that is not the problem , I just want to know how to debug through the javascript. I tried to use the debugger command and I cant find it in the sources tab?
any idea how I can debug this?
...
How to make Twitter Bootstrap menu dropdown on hover rather than click
... users:
body {
padding-top: 60px;
padding-bottom: 40px;
}
.sidebar-nav {
padding: 9px 0;
}
.dropdown-menu .sub-menu {
left: 100%;
position: absolute;
top: 0;
visibility: hidden;
margin-top: -1px;
}
.dropdown-menu li:hover .sub-menu {
visibility: visible;
...
What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
...ray) to a primitive returns its default value, which for objects with a valid toString() method is the result of calling object.toString() (§8.12.8). For arrays this is the same as calling array.join() (§15.4.4.2). Joining an empty array results in an empty string, so step #7 of the addition opera...
Pretty-Print JSON in Java
... Nice answer, more better than using shit like GSON and other side libraries
– Acuna
May 21 at 20:01
...
Multiprocessing vs Threading Python [duplicate]
...is usually straightforward
Takes advantage of multiple CPUs & cores
Avoids GIL limitations for cPython
Eliminates most needs for synchronization primitives unless if you use shared memory (instead, it's more of a communication model for IPC)
Child processes are interruptible/killable
Python mult...
How to show loading spinner in jQuery?
...o the ajaxStart/Stop events on the element itself.
$('#loadingDiv')
.hide() // Hide it initially
.ajaxStart(function() {
$(this).show();
})
.ajaxStop(function() {
$(this).hide();
})
;
The ajaxStart/Stop functions will fire whenever you do any Ajax calls.
Upda...
How are msys, msys2, and msysgit related to each other?
...ard ported the old MSYS patches and added some of his own.
As well as providing the necessary Unix tools with which to compile native software - the stated goal of MSYS - we ported the Pacman package manager from Arch Linux. Pacman is more than just about managing binary packages (though it does th...