您好我必须在xml文件中找到丢失的号码。但我觉得很难找到。请提出一些想法。
一个文件包含一个<a>
标签,其中包含id,即第1,2页......我需要使用jquery找到丢失的数字。
A.XML
<p>have a great <a id="page-1"/>day. How are you.</p>
<p><a id="page-2"/>Have a nice day.</p>
<p>How <a id="page-5"/>are you</p>
<p>Life is so exciting<a id="page-6"/></p>
我的代码
<script>
$(document).ready(function() {
$("#find").click(function(){
Fname = $("#myFile").val();
lpage = $("#lpage").val();
$.get(Fname, function(data){
var lines = data.split("\n");
if (lines.match(id="page-)) { //how to use regular exoreessi0n
alert("hi");
}
});
});
});
</script>
答案 0 :(得分:0)
我会对你的输入做一些假设。请根据需要添加验证:
var lines = ['<p>have a great <a id="page-1"/>day. How are you.</p>',
'<p><a id="page-2"/>Have a nice day.</p>',
'<p>How <a id="page-5"/>are you</p>',
'<p>Life is so exciting<a id="page-6"/></p>'];
var sequences = [];
lines.forEach(function(line) {
// Not efficient but simple
// Let jQuery parse this string to object, so we won't need regexp
var obj = $(line);
// Assuming there's always A and ID attribute
var id = obj.find("a").attr("id").split("-");
// Assuming sequence is always last
sequences.push(parseInt(id[id.length - 1]));
});
sequences.sort();
// Again, inefficient, but will do the job
var last = sequences[sequences.length - 1];
for (var i = last; i >= 0; i--) {
if (sequences.indexOf(i) < 0) {
console.log(i + " is missing");
}
}