大约有 40,000 项符合查询结果（耗时：0.0379秒） [XML]
\d is less efficient than [0-9]
...anging the regex constructor:
var rex = new Regex(regex, RegexOptions.ECMAScript);
Gives new timings:
Regex \d took 00:00:00.1355787 result: 5077/10000
Regex [0-9] took 00:00:00.1360403 result: 5077/10000 100.34 % of first
Regex [0123456789] took 00:00:00.1362112 result: 5077/1...
How to create the most compact mapping n → isprime(n) up to a limit N?
... if n % i == 0:
return False
return True
Here is my script to compare the variants:
import math
import pandas as pd
import seaborn as sns
import time
from matplotlib import pyplot as plt
def is_prime_1(n):
...
def is_prime_2(n):
...
def is_prime_3(n):
...
def is...
ruby system command check exit code
...e following and I want to check their exit codes simultaneously so that my script exits out if that command fails.
5 Answer...
Get type of all variables
In R, I'd like to retrieve a list of global variables at the end of my script and iterate over them. Here is my code
6 Answ...
How to import local packages without gopath
...1 and then importing with import "./package1" in binary1.go and binary2.go scripts like this :
binary1.go
...
import (
"./package1"
)
...
So my current directory structure looks like this:
myproject/
├── binary1.go
├── binary2.go
├── package1/
│ └── pa...
How to remove a column from an existing table?
...
By the way, you can call these types of "re-runnable" scripts/functions Idempotent
– tomosius
Nov 25 '16 at 20:12
...
Spark java.lang.OutOfMemoryError: Java heap space
...
Have a look at the start up scripts a Java heap size is set there, it looks like you're not setting this before running Spark worker.
# Set SPARK_MEM if it isn't already set since we also use it for this process
SPARK_MEM=${SPARK_MEM:-512m}
export SPAR...
Import PEM into Java Key Store
...volves invoking keytool multiple times for each cert. Ubuntu has an update script which does exactly this, except that Ubuntu stores its certs in a directory. I'll be adding support for directories in the near future. Thanks again for reviewing the code.
– Alastair McCormack
...
How can I check whether Google Maps is fully loaded?
...into my web site. Once Google Maps is loaded, I need to kick off a few JavaScript processes.
9 Answers
...
How can I deploy/push only a subdirectory of my git repo to Heroku?
...s in my subdirectory. If this is your case you can use the following bash script. Just put it in your Rails app directory.
#!/bin/bash
#change to whichever directory this lives in
cd "$( dirname "$0" )"
#create new git repository and add everything
git init
git add .
git commit -m"init"
git rem...