身份證檢查

Javascript:

JavaScript

function checkID(id){ //建立字母分數陣列(A~Z) var city = new Array( 1,10,19,28,37,46,55,64,39,73,82, 2,11, 20,48,29,38,47,56,65,74,83,21, 3,12,30 ) id = id.toUpperCase(); // 使用「正規表達式」檢驗格式 if (id.search(/^[A-Z](1|2)\d{8}$/i) == -1) { //alert('基本格式錯誤'); return false; } else { //將字串分割為陣列(IE必需這麼做才不會出錯) id = id.split(''); //計算總分 var total = city[id[0].charCodeAt(0)-65]; for(var i=1; i<=8; i++){ total += eval(id[i]) * (9 - i); } //補上檢查碼(最後一碼) total += eval(id[9]); //檢查比對碼(餘數應為0); return ((total%10 == 0 )); } }

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function checkID(id){     //建立字母分數陣列(A~Z)     var city = new Array(          1,10,19,28,37,46,55,64,39,73,82, 2,11,         20,48,29,38,47,56,65,74,83,21, 3,12,30     )     id = id.toUpperCase();     // 使用「正規表達式」檢驗格式     if (id.search(/^[A-Z](1|2)\d{8}$/i) == -1) {         //alert('基本格式錯誤');         return false;     } else {         //將字串分割為陣列(IE必需這麼做才不會出錯)         id = id.split('');         //計算總分         var total = city[id[0].charCodeAt(0)-65];         for(var i=1; i<=8; i++){             total += eval(id[i]) * (9 - i);         }         //補上檢查碼(最後一碼)         total += eval(id[9]);         //檢查比對碼(餘數應為0);         return ((total%10 == 0 ));     } }