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Display number with leading zeros
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In Python 2 (and Python 3) you can do:
print "%02d" % (1,)
Basically % is like printf or sprintf (see docs).
For Python 3.+, the same behavior can also be achieved with format:
print("{:02d}".format(1))
For Python 3.6+ the same...
Is the ternary operator faster than an “if” condition in Java [duplicate]
... readable doesn't mean it matters, perse.
– Jon Egeland
Mar 16 '12 at 22:42
24
@Jon: Yes, it doe...
How do I set the maximum line length in PyCharm?
I am using PyCharm on Windows and want to change the settings to limit the maximum line length to 79 characters, as opposed to the default limit of 120 characters.
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How does Angular $q.when work?
...w does $q.when work in AngularJS?
I'm trying to analyse how $http work and found this:
1 Answer
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delete map[key] in go?
...ems a poor use of resources though!
Another way is to check for existence and use the value itself:
package main
func main () {
var sessions = map[string] chan int{};
sessions["moo"] = make (chan int);
_, ok := sessions["moo"];
if ok {
delete(sessions, "moo");
}
}
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Shallow copy of a Map in Java
As I understand it, there are a couple of ways (maybe others as well) to create a shallow copy of a Map in Java:
3 Answer...
“21天教你学会C++” - 创意 - 清泛网 - 专注C/C++及内核技术
...时。我在Amazon.com上进行了如下搜索：
pubdate: after 1992 and title: days and (title: learn or title: teach yourself)
(出版日期：1992年后 and 书名：天 and （书名：学会 or 书名：无师自通）)
我一共得到了248个搜索结果。前面的78个是计算机...
How to write binary data to stdout in python 3?
...ike using shutil.copyfileobj even when the source file object gives bytes, and not strings. +1
– csl
Jun 19 '15 at 14:45
1
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What is MyAssembly.XmlSerializers.dll generated for?
...y *.XmlSerializers.dll is being generated. Why this file is auto generated and what it is used for?
5 Answers
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Guid is all 0's (zeros)?
I'm testing out some WCF services that send objects with Guids back and forth. In my web app test code, I'm doing the following:
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