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How to do a logical OR operation in shell scripting
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1001
This should work:
#!/bin/bash
if [ "$#" -eq 0 ] || [ "$#" -gt 1 ] ; then
echo "hello"
fi...
What's the fundamental difference between MFC and ATL?
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180
I think the answer to your question is mostly historical, if you look back at how the two librar...
Haskell: Lists, Arrays, Vectors, Sequences
...ke
ones :: [Integer]
ones = 1:ones
twos = map (+1) ones
tenTwos = take 10 twos
work wonderfully. Infinite data structures rock.
Lists in Haskell provide an interface much like iterators in imperative languages (because of laziness). So, it makes sense that they are widely used.
On the oth...
Stripping out non-numeric characters in string
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edited Oct 20 '10 at 12:23
answered Oct 20 '10 at 12:04
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How can I concatenate two arrays in Java?
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edited May 30 '19 at 13:32
community wiki
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C++虚继承的概念 - C/C++ - 清泛网 - 专注C/C++及内核技术
...t.cpp
3: //说明：C++虚拟继承学习演示
4: //环境：VS2005
5: //blog：pppboy.blog.163.com
6: //----------------------------------------------------
7: #include "stdafx.h"
8: #include <iostream>
9: using namespace std;
10:
11: //Base
12: class ...
Scatterplot with marginal histograms in ggplot2
... of the ggplot objects:
hist_top <- ggplot()+geom_histogram(aes(rnorm(100)))
empty <- ggplot()+geom_point(aes(1,1), colour="white")+
theme(axis.ticks=element_blank(),
panel.background=element_blank(),
axis.text.x=element_blank(), axis.text.y=element_bl...
How do I filter an array with AngularJS and use a property of the filtered object as the ng-model at
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answered Jul 30 '13 at 11:50
JB NizetJB Nizet
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Why there can be only one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT clause?
... has been lifted in recent versions of MySQL:
Changes in MySQL 5.6.5 (2012-04-10, Milestone 8)
Previously, at most one TIMESTAMP column per table could be
automatically initialized or updated to the current date and time.
This restriction has been lifted. Any TIMESTAMP column definitio...
convert string array to string
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string[] test = new string[2];
test[0] = "Hello ";
test[1] = "World!";
string.Join("", test);
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