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#!/usr/bin/env node | |
var blockexplorer = require('blockchain.info/blockexplorer') | |
// randomly chosen | |
var addresses = [ | |
'1CEDQ9Vfq8pYVi3Anp926Zjac9Xiz394Y1', | |
'1CGXTwzjTHbUJXLAvWB4r7L2QLctEpWjti', | |
'1DUb2YYbQA1jjaNYzVXLZ7ZioEhLXtbUru', | |
'1Hz96kJKF2HLPGY15JWLB5m9qGNxvt8tHJ', |
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# command (one-off step) | |
mkdir -m700 ~/.history | |
# in .bashrc | |
HISTFILE=~/.history/history.`tty | cut -d/ -f4` |
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# apps | |
alias e='exit' | |
alias v='vim' | |
alias g='git' | |
alias gr='grep' | |
alias c='cut' | |
alias h='head' | |
alias t='tail' | |
alias tf='tail -f' | |
alias le='less' |
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function extendObject(parent, child) { | |
var copyFunction = function (f) { | |
var t = function () { | |
return f.apply(this, arguments); | |
}; | |
Object.defineProperty(t, 'name', { | |
value: f.name, | |
}); | |
return t; | |
}, |
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console.log(' '.repeat(10), "☆"); | |
for (let i = 1, s = ''; i < 10; i++) { | |
console.log(' '.repeat(10 - i), `${s += i}=${+s * 8 + i}`); | |
} | |
console.log(' '.repeat(9), '_=_'); | |
/** | |
Based on the eight calculations: |
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function string2ascii(string, sep) { | |
return string.split('') | |
.map(e => e.charCodeAt(0)).join(sep ? sep : ''); | |
} | |
function string2hex(string, sep) { | |
return string.split('') | |
.map(e => e.charCodeAt(0).toString(16)).join(sep ? sep : ''); | |
} |
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#include <stdio.h> | |
/* | |
The conversion from `int` to `char` in this sequence is not to guaranteed to work on all systems. | |
See more in the comments of the accepted answer: http://stackoverflow.com/questions/21196926 | |
*/ | |
int main() { | |
int i; | |
int e = 0; | |
char numbers[11]; | |
char alpha_capital[27]; |
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var string = 'string', | |
stringIndex = function () { | |
string[0]; | |
}, | |
stringSlice = function () { | |
string.slice(0, 1); | |
}, | |
stringSubstring = function () { | |
string.substring(0, 1); | |
}; |
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function checkBalance(s) { | |
if (s.length % 2 !== 0) return false; | |
if (s.length === 0) return true; | |
var pairs = ['[]', '()', '{}'], | |
r0 = s.split(pairs[0]), | |
r1 = s.split(pairs[1]), | |
r2 = s.split(pairs[2]); |
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<!doctype html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<script> | |
/* | |
CryptoJS v3.1.2 | |
code.google.com/p/crypto-js | |
(c) 2009-2013 by Jeff Mott. All rights reserved. | |
code.google.com/p/crypto-js/wiki/License |
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