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Created Sep 15, 2014
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* 文字列を16進数に変換する
* 16進数ひとけたの場合は01 02 03と表記する
* @method hex
* @param {String} s 文字列
* @return {String} result 16進数に変換した文字列
function hex(s) {
var result="";
for(var i=0;i<s.length;++i){
var h = ("0"+s.charCodeAt(i).toString(16)).substr(-2);
result += h;
return result;
console.log(hex("abc")); // 616263
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