大约有 15,220 项符合查询结果（耗时：0.0229秒） [XML]
Command to get time in milliseconds
... I feel so proud that @Peter Mortensen did one of his superb active readings on one of my posts :) thanks!!
– fedorqui 'SO stop harming'
Nov 18 '19 at 13:44
add a comme...
How to 'minify' Javascript code
...
console.log([1,3,5,8,9].indexOf(a)!=-1?'yes':'no');
but indexOf is slow read this https://stackoverflow.com/a/30335438/2450730
numbers
1000000000000
//same as
1e12
var oneDayInMS=1000*60*60*24;
//same as
var oneDayInMS=864e5;
var a=10;
a=1+a;
a=a*2;
//same as
a=++a*2;
Some nice articles/si...
What is the use of “assert” in Python?
I have been reading some source code and in several places I have seen the usage of assert .
21 Answers
...
What database does Google use?
...s about 100 tablets. This setup allows tablets from a single table to be spread among many servers. It also allows for fine-grained load balancing. If one table is receiving many queries, it can shed other tablets or move the busy table to another machine that is not so busy. Also, if a machine goes...
Difference between .tagName and .nodeName
...
Read about those properties in the DOM Core spec.
nodeName is a property defined in the Node interface
http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-F68D095
tagName is a property defined in the Element interface
http:/...
removeEventListener on anonymous functions in JavaScript
...
The this keyword can be confusing. A good place to read up on it is quirksmode.org/js/this.html
– Adam Heath
Feb 12 '11 at 23:23
...
best way to add license section to iOS settings bundle
...
Read devforums.apple.com/message/894791#894791 if you are using this with iOS7. Specifically you may need to change <key>Title</key> to <key>FooterText</key> to get it to look normal.
...
How dangerous is it to compare floating point values?
...ses.
First of all, if you want to program with floating point, you should read this:
What Every Computer Scientist Should Know About Floating-Point Arithmetic
Yes, read all of it. If that's too much of a burden, you should use integers/fixed point for your calculations until you have time to read...
How do I design a class in Python?
...ing like:
dog.footstep(0)
Now, it may be that for your case you need to read in your raw data file and compute the footstep locations. All this could be hidden in the footstep() function so that it only happens once. Something like:
class Dog:
def __init__(self):
self._footsteps=None
...
How can I create tests in Android Studio?
...w project and you will see the following default folders.
Everything is already there and waiting for you to create your tests. It's all set up already!
How to create local unit tests
Open the ExampleUnitTest file shown in the image above. it should look something like this:
public class ExampleUni...