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Calculate date/time difference in java [duplicate]
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edited Nov 9 '18 at 13:52
vels4j
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answered M...
How to base64 encode image in linux bash / shell
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answered Jun 4 '13 at 13:09
chepnerchepner
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What is the difference between “INNER JOIN” and “OUTER JOIN”?
...ables, with a single column each, and data as follows:
A B
- -
1 3
2 4
3 5
4 6
Note that (1,2) are unique to A, (3,4) are common, and (5,6) are unique to B.
Inner join
An inner join using either of the equivalent queries gives the intersection of the two tables, i.e. the two r...
Loop through an array in JavaScript
...e seen this anti-pattern so many times.
Anti-pattern:
const numbers = [1,2,3,4,5], doubled = [];
numbers.forEach((n, i) => { doubled[i] = n * 2 });
Proper use case of map:
const numbers = [1,2,3,4,5];
const doubled = numbers.map(n => n * 2);
console.log(doubled);
Also, if you are ...
WheelView 拓展：滚轮选择框扩展，滚轮日历选择框和旋转日历扩展 · App In...
... Logo 和主界面
输出示例
Spin Calendar V3 界面
函数
高级函数
事件
属性
使用示例
基础日期选择
处理日期选择
日期验证和设置
年龄计算
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Grep for literal strings
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138
You can use grep for that, with the -F option.
-F, --fixed-strings PATTERN is a set of n...
Json.net serialize/deserialize derived types?
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edited Oct 2 '18 at 3:03
answered Jan 6 '12 at 20:02
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C# int to byte[]
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223
The RFC is just trying to say that a signed integer is a normal 4-byte integer with bytes ordere...
Decode HTML entities in Python string?
I'm parsing some HTML with Beautiful Soup 3, but it contains HTML entities which Beautiful Soup 3 doesn't automatically decode for me:
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Rollback to last git commit
...O local file changes and REMOVE your last commit
git reset --hard HEAD^
3) KEEP local file changes and REMOVE your last commit
git reset --soft HEAD^
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