大约有 5,476 项符合查询结果（耗时：0.0377秒） [XML]
What is the leading LINQ for JavaScript library? [closed]
...braries for JavaScript, then they should definitely know about Rx, as it's 100% LINQ, and knowing LINQ but not Rx is really only knowing half the story. Cheers.
– Richard Anthony Hein
Jul 15 '13 at 15:19
...
Calculating width from percent to pixel then minus by pixel in LESS CSS
...your example, you would simply surround the arguments, like this:
calc(~'100% - 10px')
Demo : http://jsfiddle.net/c5aq20b6/
I find that I use this in one of the following three ways:
Basic Escaping
Everything inside the calc arguments is defined as a string, and is totally static until it's...
Bootstrap 3.0 - Fluid Grid that includes Fixed Column Sizes
...d-240{
width:240px;
background:red;
position:fixed;
height:100%;
z-index:1;
}
.col-fixed-160{
margin-left:240px;
width:160px;
background:blue;
position:fixed;
height:100%;
z-index:1;
}
.col-offset-400{
padding-left:415px;
z-index:0;
}
...
print call stack in C or C++
...il call optimization?
Benchmark run on -O3:
time ./boost_stacktrace.out 1000 >/dev/null
Output:
real 0m43.573s
user 0m30.799s
sys 0m13.665s
So as expected, we see that this method is extremely slow likely to to external calls to addr2line, and is only going to be feasible if a l...
Maximum number of records in a MySQL database table
...u don't have to make your primary key an integer, you could make it a CHAR(100). You could also declare the primary key over more than one column.
There are other constraints on table size besides number of rows. For instance you could use an operating system that has a file size limitation. Or y...
Scaling Node.js
...3/1.212
LRANGE (10 elements): 20000 ops 36563.07 ops/sec 1/8/1.363
LRANGE (100 elements): 20000 ops 21834.06 ops/sec 0/9/2.287
When you look at those numbers then 20/s is NOTHING :).
Authentication
Update:
everyauth
openid
I am telling this a lot but for the love of god please don't try ...
Absolute positioning ignoring padding of parent
...t;
<div style="background-color: red; position: relative; height: 100%;">
<div style="background-color: gray; position: absolute; left: 0px; right: 0px;bottom: 0px;">css sux</div>
</div>
</div>
</body>
</html>
Edit:
I think wh...
Simplest way to profile a PHP script
...--------------------------------------------------------------------------
100.0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.0000 0.0009 0 main
56.9 0.00 0.00 0.00 0.00 0.00 0.00 1 0.0005 0.0005 0 apd_set_pprof_trace
28.0 0.00 0.00 0.00 0.00 0.00 0.00 10 0.0000 ...
Random row selection in Pandas dataframe
...od built-in:
import pandas
df = pandas.DataFrame(pandas.np.random.random(100))
# Randomly sample 70% of your dataframe
df_percent = df.sample(frac=0.7)
# Randomly sample 7 elements from your dataframe
df_elements = df.sample(n=7)
For either approach above, you can get the rest of the rows by d...
Which UUID version to use?
...) are not generating 1 billion UUIDs every second. So we have longer than 100 years until the first collision (on average).
– Kevin
Aug 19 '15 at 3:42
34
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