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Expand a random range from 1–5 to 1–7
...the random real number to base 7. Here is a Python implementation, with a test harness:
import random
rand5_calls = 0
def rand5():
global rand5_calls
rand5_calls += 1
return random.randint(0, 4)
def rand7_gen():
state = 0
pow5 = 1
pow7 = 7
while True:
if state...
Asking the user for input until they give a valid response
...str.isupper to get only uppercase. See docs for the full list.
Membership testing:
There are several different ways to perform it. One of them is by using __contains__ method:
from itertools import chain, repeat
fruits = {'apple', 'orange', 'peach'}
prompts = chain(["Enter a fruit: "], repeat("I d...
Does JavaScript guarantee object property order?
...
I roughly tested the conclusion in node v8.11 and it is correct.
– merlin.ye
Jul 20 '18 at 5:31
1
...
What is the maximum length of a URL in different browsers?
...ximum URL length is 2083 chars, and it seems IE9 has a similar limit.
I've tested IE10 and the address bar will only accept 2083 chars. You can click a URL which is longer than this, but the address bar will still only show 2083 characters of this link.
There's a nice writeup on the IE Internals blo...
HTML input textbox with a width of 100% overflows table cells
... then be like 30 pixels).
The following solutions works very well for me (tested in Firefox, IE 9, Safari):
<table style="background-color: blue; width: 100%;" cellpadding="0" cellspacing="0">
<tr>
<td style="background-color: red; padding: 3px;">
<div style="mar...
How to create a printable Twitter-Bootstrap page
...l-xs-* before each col-md-* and this fixed the issue. DISCLAIMER: I didn't test adding a container as <div class="row"></div> which may also have solved the problem(seems obvious).
– Fr0zenFyr
May 29 '15 at 10:05
...
Web API 最佳入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...new Contact
{
Email = string.Format("test{0}@example.com", index),
Name = string.Format("test{0}", index),
Phone = string.Format("{0}{0}{0} {0}{0}{0} {0}{0}{0}{0}", index)
};
AddContact(...
Android Studio vs Eclipse + ADT Plugin? [closed]
...
The latest stable version of android studio is easy to install & good to use, and it is the official Android IDE. You can use inbuilt maven as build tool, VCS (version control system) is nice and you can easily clone, import pr...
Secure hash and salt for PHP passwords
...ntials, or modify other user's accounts or access their data. If you don't test the security of your system, then you cannot blame anyone but yourself.
Lastly: I am not a cryptographer. Whatever I've said is my opinion, but I happen to think it's based on good ol' common sense ... and lots of readi...
How to download image using requests
...ts
from StringIO import StringIO
from PIL import Image
import profile
def testRequest():
image_name = 'test1.jpg'
url = 'http://example.com/image.jpg'
r = requests.get(url, stream=True)
with open(image_name, 'wb') as f:
for chunk in r.iter_content():
f.write(chu...