| #################### | |
| ## docker ## | |
| #################### | |
| alias docker-rm-none="docker rmi $(docker images | grep none | awk '{print $3F}')" | |
| alias docker-stop-all="docker stop `docker container ls -aq`" | |
| alias docker-rm-all="docker container rm `docker container ls -aq`" | |
| ##################### | |
| ## git ## | |
| ##################### |
| function countNonDigits(n) { | |
| var cnt = 0; | |
| while (n > 0) { | |
| var r = n%10; | |
| if (r !=0) { | |
| cnt++; | |
| } | |
| n = (n-r) /10 ; | |
| } | |
| return cnt; |
| function arrangeStudents(boys,girls) { | |
| // Write your code here | |
| // if (Math.abs(a.length - b.length)>1) { | |
| // return false; | |
| // } | |
| if (boys.length != girls.length) { | |
| return false; | |
| } |
| // STRING OPERATORS | |
| // "0"*10 | |
| console.log(`"0"*10 == `, "0".repeat(10)); | |
| // substr in str | |
| console.log(`substr in str ==`, "abc".indexOf("ab")>=0); | |
| console.log(`substr in str ==`, "abc".includes("ab")); | |
| // ','.join([1,2,3,4]) | |
| console.log(`','.join([1,2,3,4]) == `, [1,2,3,4].join(",")); | |
| // "1,2,3,4".split(',') | |
| console.log(`"1,2,3,4".split(',') == `, "1,2,3,4".split(",")); |
| // STRING OPERATORS | |
| // "0"*10 | |
| console.log(`"0"*10 == `, "0".repeat(10)); | |
| // substr in str | |
| console.log(`substr in str ==`, "abc".indexOf("ab")>=0); | |
| console.log(`substr in str ==`, "abc".includes("ab")); | |
| // ','.join([1,2,3,4]) | |
| console.log(`','.join([1,2,3,4]) == `, [1,2,3,4].join(",")); | |
| // "1,2,3,4".split(',') | |
| console.log(`"1,2,3,4".split(',') == `, "1,2,3,4".split(",")); |
| General principles for good URI design: | |
| Don't use query parameters to alter state | |
| Don't use mixed-case paths if you can help it; lowercase is best | |
| Don't use implementation-specific extensions in your URIs (.php, .py, .pl, etc.) | |
| Don't fall into RPC with your URIs | |
| Do limit your URI space as much as possible | |
| Do keep path segments short | |
| Do prefer either /resource or /resource/; create 301 redirects from the one you don't use | |
| Do use query parameters for sub-selection of a resource; i.e. pagination, search queries |
I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6
apt-get update && apt-get install gdb