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Bash history without line numbers
...k! Can you explain what it's doing? Will it work if the numbers are 1 - 10,000?
– cwd
Aug 18 '11 at 15:47
29
...
Check whether an input string contains a number in javascript
... It should be isFinite(parseFloat(n)) in the first example. isNumeric("5,000") fails.
– m.spyratos
Nov 15 '15 at 6:15
...
UnicodeDecodeError when reading CSV file in Pandas with Python
I'm running a program which is processing 30,000 similar files. A random number of them are stopping and producing this error...
...
Is it possible to change only the alpha of a rgba background colour on hover?
... &:hover
{
&:before
{
background-color: rgba(#000, 0.25);
}
}
}
exemple : https://jsfiddle.net/epwyL296/14/
just play with alpha of background. if you want light instead of darkness, just replace #000 by #fff
...
Renaming files in a folder to sequential numbers
...cond, the script can get really slow. In my case, running it on roughly 36.000 files, script moved approx. one item per second! I'm not really sure why this happens, but the rule I got from colleagues was "find is your friend".
find -name '*.jpg' | # find jpegs
gawk 'BEGIN{ a=1 }{ printf "mv %s %04...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
... a Python implementation. It takes about 0.5 seconds to calculate for N=50,000.
def max_chars(n):
dp = [0] * (n+1)
for i in xrange(n):
dp[i+1] = max(dp[i+1], dp[i]+1) # press a
for j in xrange(i+3, min(i+7, n+1)):
dp[j] = max(dp[j], dp[i]*(j-i-1)) # press select all, copy, paste x...
MySQL: ignore errors when importing?
I am importing a fairly large database. The .sql file has almost 1,000,000 lines in it. Problem is that I am getting a syntax error when trying to import the database. It says:
...
Best data type to store money values in MySQL
...ng decimal(10,2) for my money value, however when I put something like 867,000.00 it gets saved as 867. what am I doing wrong?
– codeinprogress
Jan 16 '17 at 14:43
add a comme...
What represents a double in sql server?
...nt.
SqlDbType Enumeration
For Lat/Long as OP mentioned.
A metre is 1/40,000,000 of the latitude, 1 second is around 30 metres. Float/double give you 15 significant figures. With some quick and dodgy mental arithmetic... the rounding/approximation errors would be the about the length of this fill ...
Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...x cm2
cm2: file format elf32-i386
cm2
architecture: i386, flags 0x00000102:
EXEC_P, D_PAGED
start address 0x08048080
程序头：
LOAD off 0x00000000 vaddr 0x08048000 paddr 0x08048000 align 2**12
filesz 0x000005b8 memsz 0x000005b8 flags r-x
LOAD off 0x000005b8...