大约有 220 项符合查询结果（耗时：0.0133秒） [XML]
How to check whether a string is a valid HTTP URL?
...Http;
Or, if you want to accept both HTTP and HTTPS URLs as valid (per J0e3gan's comment):
Uri uriResult;
bool result = Uri.TryCreate(uriName, UriKind.Absolute, out uriResult)
&& (uriResult.Scheme == Uri.UriSchemeHttp || uriResult.Scheme == Uri.UriSchemeHttps);
...
Python string class like StringBuilder in C#?
...nced Interactive Python.
In [1]: values = [str(num) for num in range(int(1e3))]
In [2]: %%timeit
...: ''.join(values)
...:
100000 loops, best of 3: 7.37 µs per loop
In [3]: %%timeit
...: result = ''
...: for value in values:
...: result += value
...:
10000 loops, best of ...
How to namespace Twitter Bootstrap so styles don't conflict
...named .bootstrap-wrapper
https://gist.github.com/onigetoc/20c4c3933cabd8672e3e
I started with this tool: http://www.css-prefix.com/
And fix the rest with search and replace in PHPstorm.
All fonts @font-face are hosted on maxcdn.
First line example
.bootstrap-wrapper {font-family:sans-serif;-ms-te...
How to make a background 20% transparent on Android
...95% — F2
94% — F0
93% — ED
92% — EB
91% — E8
90% — E6
89% — E3
88% — E0
87% — DE
86% — DB
85% — D9
84% — D6
83% — D4
82% — D1
81% — CF
80% — CC
79% — C9
78% — C7
77% — C4
76% — C2
75% — BF
74% — BD
73% — BA
72% — B8
71% — B5
70% — B3
69% — B0
...
Python Flask, how to set content type
...tially @SimonSapin's accepted answer repackaged.
– J0e3gan
Jul 31 '15 at 17:35
@J0e3gan thanks. I have expanded my ans...
Repeat each row of data.frame the number of times specified in a column
...anded
See how much faster this solution is:
df <- data.frame(var1=1:2e3, var2=1:2e3, freq=1:2e3)
system.time(df.exp <- df[rep(row.names(df), df$freq), 1:2])
## user system elapsed
## 4.57 0.00 4.56
dt <- data.table(df)
system.time(dt.expanded <- dt[ ,list(freq=rep(1,freq...
How can I round a number in JavaScript? .toFixed() returns a string?
...) / 1e2;
someNumber === 42.01;
// if you need 3 digits, replace 1e2 with 1e3 etc.
// or just copypaste this function to your code:
function toFixedNumber(num, digits, base){
var pow = Math.pow(base||10, digits);
return Math.round(num*pow) / pow;
}
.
Or if you want a “native-like” functi...
Get property value from string using reflection
... edited Nov 2 '14 at 18:04
J0e3gan
8,14799 gold badges4646 silver badges7575 bronze badges
answered Dec 23 '09 at 19:24
...
Rails: How to reference images in CSS within Rails 4
...rs:
background-image: url("/assets/pretty-background-image-8b313354987c309e3cd76eabdb376c1e.jpg");
share
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Create nice column output in python
...16918', 'For queues and stuff.'],
['app-server', 'b866cd0f-bf80-40c7-84e3-c40891ec68f9', 'linuxnode-4-295918', 'A popular destination.'],
['nginx', '76fea0f0-aa53-4911-b7e4-fae28c2e469b', 'linuxnode-5-292735', 'Traffic Cop'],
]
table = columnar(data, headers, no_borders=True)
print(table)
...