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MySQL remove all whitespaces from the entire column
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203
To replace all spaces :
UPDATE `table` SET `col_name` = REPLACE(`col_name`, ' ', '')
To remov...
Python: Using .format() on a Unicode-escaped string
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3 Answers
3
Active
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how to use sed, awk, or gawk to print only what is matched?
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43
My sed (Mac OS X) didn't work with +. I tried * instead and I added p tag for printing match:
s...
Get Unix Epoch Time in Swift
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YannikYannik
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Efficient way to determine number of digits in an integer
...++;
}
return digits;
}
// partial specialization optimization for 32-bit numbers
template<>
int numDigits(int32_t x)
{
if (x == MIN_INT) return 10 + 1;
if (x < 0) return numDigits(-x) + 1;
if (x >= 10000) {
if (x >= 10000000) {
if (x >= 100...
How to resize an image with OpenCV2.0 and Python2.6
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354
If you wish to use CV2, you need to use the resize function.
For example, this will resize bo...
cannot load such file — zlib even after using rvm pkg install zlib
I installed zlib package and ruby 1.9.3 using rvm, but whenever I try to install
gems it says
cannot load such file -- zlib
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Adding a y-axis label to secondary y-axis in matplotlib
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3 Answers
3
Active
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How to find out which version of the .NET Framework an executable needs to run?
...v2.0.50727
.assembly extern mscorlib
{
.publickeytoken = (B7 7A 5C 56 19 34 E0 89 ) // .z\V.4..
.ver 2:0:0:0
}
.assembly extern System
{
.publickeytoken = (B7 7A 5C 56 19 34 E0 89 ) // .z\V.4..
.ver 2:0:0:0
}
Reflector:
.module WindowsFormsA...
Is it possible to declare two variables of different types in a for loop?
...ith the std::string, if you want to name a type. For example:
auto [vec, i32] = std::tuple{std::vector<int>{3, 4, 5}, std::int32_t{12}}
A specific application of this is iterating over a map, getting the key and value,
std::unordered_map<K, V> m = { /*...*/ };
for (auto& [key, va...