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我正在浏览一些JavaScript和jQuery示例,以及一些我在下面的代码中遇到的问题,但我完全无法理解。我想知道它试图验证的条件是什么。逻辑落后javascript代码要求
function checkPostCode(toCheck)
{
var alpha1 = "[abcdefghijklmnoprstuwyz]"; // Character 1
var alpha2 = "[abcdefghklmnopqrstuvwxy]"; // Character 2
var alpha3 = "[abcdefghjkpmnrstuvwxy]"; // Character 3
var alpha4 = "[abehmnprvwxy]"; // Character 4
var alpha5 = "[abdefghjlnpqrstuwxyz]"; // Character 5
var pcexp = new Array();
pcexp.push (new RegExp ("^(" + alpha1 + "{1}" + alpha2 + "?[0-9]{1,2})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
pcexp.push (new RegExp ("^(" + alpha1 + "{1}[0-9]{1}" + alpha3 + "{1})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
pcexp.push (new RegExp ("^(" + alpha1 + "{1}" + alpha2 + "{1}" + "?[0-9]{1}" + alpha4 +"{1})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
pcexp.push (/^(GIR)(\s*)(0AA)$/i);
pcexp.push (/^(bfpo)(\s*)([0-9]{1,4})$/i);
pcexp.push (/^(bfpo)(\s*)(c\/o\s*[0-9]{1,3})$/i);
pcexp.push (/^([A-Z]{4})(\s*)(1ZZ)$/i);
var postCode = toCheck;
var valid = false;
for (var i=0; i<pcexp.length; i++) {
if (pcexp[i].test(postCode)) {
pcexp[i].exec(postCode);
postCode = RegExp.$1.toUpperCase() + " " + RegExp.$3.toUpperCase();
postCode = postCode.replace (/C\/O\s*/,"c/o ");
valid = true;
break;
}
}
if (valid) {return postCode;} else return false;
}
请提供指向这些示例起源地的链接。上下文可以帮助我们理解这个问题。 基于变量名称,它看起来像试图验证邮政编码,并试图涵盖各种国际格式。 – justis 2011-06-15 19:51:41
这是英国PostCode从这里验证:http://www.websemantics.co.uk/resources/useful_javascript_functions/(搜索页面上的邮编) – mellamokb 2011-06-15 19:52:52
这是一样的@mellamokb给了http://www.websemantics.co.uk /资源/ useful_javascript_functions – JavaGeek 2011-06-15 19:56:07