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Friday, April 13, 2018

ExecJS::RuntimeError: SyntaxError: Unexpected token punc «(», expected punc «:»

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I got this error when deploy Rails app to production server. This error will be raised if your javasctripts on assets include ES6 syntax. ...
Tuesday, April 19, 2016

Screen resolutions and image ratios of Android devices

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The base resolution(1.0) is mdpi, and ratios of other resolutions are below. ldpi = 0.75 mdpi = 1.00 hdpi = 1.5 xhdpi = 2.0 xxhdpi = 3....
Thursday, March 19, 2015

Couldn't connect to Docker daemon at http+unix://var/run/docker.sock - is it running?

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Docker Compose raise error below. $ docker-compose up Couldn't connect to Docker daemon at http+unix://var/run/docker.sock - is it runni...
Saturday, March 7, 2015

docker-machine hang at Waiting for VM to start...

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I've installed docker-machin on Mac OSX(10.8.5), and it hangs up at  Waiting for VM to start... when start docker machine. Then I'...
Saturday, September 21, 2013

Install NTP on CentOS

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Install NTP sudo yum install ntp Start NT sudo /etc/init.d/ntpd start Configure NTP servers Select NTP server which close to your l...
Thursday, June 2, 2011

Random search in Rails

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#MySQL User.find(:all, 'RAND()' ,:limit =>5) #PostgreSQL,SQLite User.find(:all, 'RANDOM()' ,:limit =>5)
Wednesday, June 1, 2011

Installing Zen Coding eclipse plugin

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Select menu Help > Install New Software ... > and add http://zen-coding.ru/eclipse/updates/ into location column. Check Zen Codi...