我想创建一个动态列表,因此当用户执行搜索时,它将重新填充列表。问题是,我似乎无法使不变的常量来存储原始的div内容。每次调用函数get的变量都会被重新初始化。功能调用后保持Javascript常量
有没有办法实现这一点,而不使用cookie?任何帮助真诚赞赏。代码不完整,因为我无法通过这一步,但如果您认为我完全走向错误的方向,请告诉我。
const originalList = document.getElementById('patientList')。getElementsByTagName('li'); frozen = Object.freeze(originalList);
<script>
const originalList = document.getElementById('patientList').getElementsByTagName('li');
frozen = Object.freeze(originalList);
var newList = '';
var found = false;
function filterPatients(){
var searchQuery = document.getElementById('search');
var query = searchQuery.value;
var listContainer = document.getElementById('patientList');
var patientList = listContainer.getElementsByTagName('li');
for (var i = 0; i < originalList.length; i++){
var link = patientList[i].getElementsByTagName('a');
var link = link[0].text;
/** remove whitespaces for easy comparison **/
link = link.toLowerCase();
query = query.toLowerCase();
link = link.replace(/\s/g, "");
query = query.replace(/\s/g, "");
/** check every character in query **/
if (link.length > query.length && link.substring(0,query.length) == query){
found = true;
newList += '<li>' + patientList[i].innerHTML + '</li>';
}
}
if (found == true){
listContainer.innerHTML = newList;
newList = '';
}
else{
listContainer.innerHTML = "<li>No patient by that name</li>";
}
console.log(frozen);
}
</script>
您在哪个浏览器中运行此代码? –
@Daniel Granger,我测试了firefox,chrome和safari上的代码,所有结果都一样。 –