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Generate array of all letters and digits
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or
('a'..'z').to_a + ('0'..'9').to_a # works in 1.8 and 1.9
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(0...36).map{ |i| i.to_s 36 }
(the Integer#to_s method converts a number to a string representing it in a desired numeral system)
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Nested JSON objects - do I have to use arrays for everything?
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3 Answers
3
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Make Div overlay ENTIRE page (not just viewport)?
...pression that the entire body is darkened.
Example: http://jsbin.com/okabo3/edit
div.fadeMe {
opacity: 0.5;
background: #000;
width: 100%;
height: 100%;
z-index: 10;
top: 0;
left: 0;
position: fixed;
}
<body>
<div class="fadeMe">...
How to get the last N rows of a pandas DataFrame?
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3 Answers
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Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... 2.1. awk的语法有两种形式
2.2. 命令选项
3. 模式和操作
3.1. 模式
3.2. 操作
4. awk的环境变量
5. awk运算符
6. 记录和域
6.1. 记录
6.2. 域
6.3. 域分隔符
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awk without printing newline
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awk '{sum+=$3}; END {printf "%f",sum/NR}' ${file}_${f}_v1.xls >> to-plot-p.xls
print will insert a newline by default. You dont want that to happen, hence use printf instead.
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What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
...8 to 127 0 to 255
smallint | 2 bytes -32768 to 32767 0 to 65535
mediumint | 3 bytes -8388608 to 8388607 0 to 16777215
int/integer | 4 bytes -2147483648 to 2147483647 0 to 4294967295
bigi...
What Are the Differences Between PSR-0 and PSR-4?
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Alex_Nabu
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answered Jul 21 '14 at 16:07
SeldaekSeldaek
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Checking if array is multidimensional or not?
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The short answer is no you can't do it without at least looping implicitly if the 'second dimen...