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What are the special dollar sign shell variables?
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1398
$1, $2, $3, ... are the positional parameters.
"$@" is an array-like construct of all positi...
How do I format a long integer as a string without separator in Java?
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edited Jan 22 '16 at 20:19
RAnders00
4,20144 gold badges2929 silver badges5757 bronze badges
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How to count duplicate value in an array in javascript
... }
current = array_elements[i];
cnt = 1;
} else {
cnt++;
}
}
if (cnt > 0) {
document.write(current + ' comes --> ' + cnt + ' times');
}
}
count();
Demo Fiddle
You can use higher-order fun...
Custom Python list sorting
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edited Feb 5 '15 at 17:33
Charlie
6,5234545 silver badges5050 bronze badges
answered Aug 7 '...
How do I convert an integer to binary in JavaScript?
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13 Answers
13
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MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...为mongodb-linux-x86_64-2.6.0
由三台虚拟机搭建，配置为单核,1G内存。实验环境如下:
MongoDB的副本集不同于以往的主从模式。
在集群Master故障的时候，副本集可以自动投票，选举出新的Master，并引导其余的Slave服务器连接新的Master...
Use find command but exclude files in two directories
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189
Here's how you can specify that with find:
find . -type f -name "*_peaks.bed" ! -path "./tmp/...
add a string prefix to each value in a string column using Pandas
...gt;>> df = pd.DataFrame({'col':['a',0]})
>>> df
col
0 a
1 0
>>> df['col'] = 'str' + df['col'].astype(str)
>>> df
col
0 stra
1 str0
share
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improve this ...
Have a fixed position div that needs to scroll if content overflows
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The problem with using height:100% is that it will be 100% of the page instead of 100% of the window (as you would probably expect it to be). This will cause the problem that you're seeing, because the non-fixed content is long enough to include the fixed...
Two statements next to curly brace in an equation
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185
You can try the cases env in amsmath.
\documentclass{article}
\usepackage{amsmath}
\begin{do...