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HeRoMo/code5to6.js

Last active June 15, 2016 00:18
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5桁自治体コードを6桁に変換する
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code5to6.js
// 5桁自治体コードを6桁コードに変換する
function code5to6(code5){
var code5str = code5.toString(10)
var code5array = code5str.split('')
var digit = code5array.length + 1
var sum = code5array.reduce(function(pre,cur,i){
return pre + parseInt(cur,10)*(digit-i)
}, 0)
var check = (11 - (sum % 11)) % 10
return ("000000"+code5str+check).substr(-6)
}
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HeRoMo commented Jun 11, 2016 •
edited

参考資料

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