大约有 44,955 项符合查询结果（耗时：0.0549秒） [XML]
“Eliminate render-blocking CSS in above-the-fold content”
I've been using Google PageSpeed insights to try and improve my site's performance, and so far it's proven extremely successful. Things like deferring scripts worked beautifully, since I already had an in-house version of jQuery's .ready() to defer scripts until the page had loaded fully, all I ha...
What's the Point of Multiple Redis Databases?
...e of the keys command on one specific kind of data, and wanted to separate it to make that faster.
8 Answers
...
Hash Code and Checksum - what's the difference?
...t all hashcodes make good checksums.
A checksum has a special purpose --- it verifies or checks the integrity of data (some can go beyond that by allowing for error-correction). "Good" checksums are easy to compute, and can detect many types of data corruptions (e.g. one, two, three erroneous bits)...
Safest way to convert float to integer in python?
...take a floating point number and return the nearest integer below or above it. However these functions return the answer as a floating point number. For example:
...
Rotating a two-dimensional array in Python
In a program I'm writing the need to rotate a two-dimensional array came up. Searching for the optimal solution I found this impressive one-liner that does the job:
...
How can I echo a newline in a batch file?
...follow
|
edited Apr 19 '18 at 13:27
Gerhard
16.1k44 gold badges1717 silver badges3636 bronze badges
...
How can I output leading zeros in Ruby?
...
If the maximum number of digits in the counter is known (e.g., n = 3 for counters 1..876), you can do
str = "file_" + i.to_s.rjust(n, "0")
share
|
im...
What is the relation between BLAS, LAPACK and ATLAS
... manuals and I have a general idea of BLAS and LAPACK and how to use them with the very few examples I find, but I can't find any actual examples using ATLAS to see how it is related with these two.
...
Using Chrome's Element Inspector in Print Preview Mode?
I am working on developing a website and need to work on the print view. Typically when I have layout issues I use Chrome's Element Inspector. However this does not exist in print preview mode.
...
c++11 Return value optimization or move? [duplicate]
...recisely when copy elision is allowed.
Your second version actively prohibits copy elision. The first version is universally better.
share
|
improve this answer
|
follow
...