jiahut

buildscript {
    repositories {
        // maven { url 'http://repo.spring.io/plugins-release' }
        // maven { url 'https://plugins.gradle.org/m2/'}
        jcenter()
    }

    dependencies {
        classpath 'io.github.lukehutch:fast-classpath-scanner:2.4.5'
    }

jiahut

// Usage: $ mongo dropAll.js

var dbs = db.getMongo().getDBNames()
for(var i in dbs){
    db = db.getMongo().getDB( dbs[i] );
    print( "dropping db " + db.getName() );
    db.dropDatabase();
}
print("done.")

jiahut

apps = hs.application.runningApplications()
for key, value in pairs(apps) do
   print(key)
   print(value)
end

jiahut

from datetime import datetime, timedelta
from functools import lru_cache, wraps


def time_cached(maxsize=None, **timedelta_kwargs):
    """
    基于时间过期的LRU缓存
    `timedelta_kwargs`:
        days=0, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=0, weeks=0
    """

jiahut

// https://ppt.geekbang.org/list/qconbj2019?from=timeline&isappinstalled=0
JSON.stringify(jQuery.map(jQuery(".last-line > a"), e =>  jQuery(e).attr('href') ))

jiahut

def l = Arrays.asList("B","A","C")

def r = l.stream().parallel().filter { e -> e != "B" } .findAny()
def s = l.stream().parallel().filter { it != "B"}.findFirst()

println l 
println r.get()
println s.get()

jiahut

import java.util.concurrent.ForkJoinPool

println ForkJoinPool.commonPool().getParallelism()

def l = Arrays.asList("A","B","C","D")
// def l = new LinkedList<String>(["B","A","C"])

println Runtime.getRuntime().availableProcessors()

jiahut

import org.slf4j.LoggerFactory
import org.slf4j.bridge.SLF4JBridgeHandler

import java.util.logging.Logger

class MyLog {
    private Logger logger = Logger.getLogger("jul")
    private org.slf4j.Logger log = LoggerFactory.getLogger(MyLog.class);
    void log() {
        SLF4JBridgeHandler.removeHandlersForRootLogger()

jiahut

# log4j.configuration=log4j.properties Use this system property to specify the name of a Log4J configuration file. If not specified, the default configuration file is log4j.properties.
# log4j.rootCategory=priority [, appender]*
# Set the default (root) logger priority. log4j.logger.logger.name=priority Set the priority for the named logger and all loggers hierarchically lower than, or below, the named logger. logger.name corresponds to the parameter of LogFactory.getLog(logger.name), used to create the logger instance. Priorities are: DEBUG, INFO, WARN, ERROR, or FATAL.
#Log4J understands hierarchical names, enabling control by package or high-level qualifiers: log4j.logger.org.apache.component=DEBUG will enable debug messages for all classes in both org.apache.component and org.apache.component.sub. Likewise, setting log4j.logger.org.apache.component=DEBUG will enable debug message for all 'component' classes, but not for other Jakarta projects.
# log4j.appender.appender.Threshold=priority

log4j.rootCatego

jiahut

{
  "keymaps": {
    "0": { "type": "scroll.home" },
    ":": { "type": "command.show" },
    "o": { "type": "command.show.open", "alter": false },
    "O": { "type": "command.show.open", "alter": true },
    "t": { "type": "command.show.tabopen", "alter": false },
    "T": { "type": "command.show.tabopen", "alter": true },
    "w": { "type": "command.show.winopen", "alter": false },
    "W": { "type": "command.show.winopen", "alter": true },