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EF Migrations: Rollback last applied migration?
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14 Answers
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PHP - How to check if a string contains a specific text [duplicate]
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178
Use the strpos function: http://php.net/manual/en/function.strpos.php
$haystack = "foo bar ba...
Using multiple arguments for string formatting in Python (e.g., '%s … %s')
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193
Mark Cidade's answer is right - you need to supply a tuple.
However from Python 2.6 onwards y...
Pip install Matplotlib error with virtualenv
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11 Answers
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C语言面试那些事儿──一道指针与数组问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...题首先看如下代码：int main(int argc, char** argv){ int a[5] = {1,2,3,4,5}; int* ptr = (int*)(&a + 1); ...首先看如下代码：
int main(int argc, char** argv)
{
int a[5] = {1,2,3,4,5};
int* ptr = (int*)(&a + 1);
printf("%d,%d\n", *(a+1), *(ptr-1));
return 0...
C# Iterating through an enum? (Indexing a System.Array)
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13 Answers
13
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How to determine the encoding of text?
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10 Answers
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Check with jquery if div has overflowing elements
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281
You actually don't need any jQuery to check if there is an overflow happening or not. Using elem...
How to convert a string to lower case in Bash?
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Bash 4.0
$ echo "${a,,}"
hi all
sed
$ echo "$a" | sed -e 's/\(.*\)/\L\1/'
hi all
# this also works:
$ sed -e 's/\(.*\)/\L\1/' <<< "$a"
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Perl
$ echo "$a" | perl -ne 'print lc'
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Bash
lc(){
case "$1" in
[A-Z])
n=$(printf "%d" "'$1")
n=$((n+32)...