[英]how to allow one method to be accessed by only refresh at a time in jquery
i have one method which is called when ever i refresh my page and that method saves a value in the database.Now if i refresh the same page continuously 3-4 times then the value is stored 3-4 times in database.我有一种方法,每当我刷新页面时都会调用该方法,该方法会在数据库中保存一个值。现在,如果我连续刷新同一页面 3-4 次,则该值将在数据库中存储 3-4 次。 I want if i refresh it 3-4 times continuously then it should be called only the first time.
我想如果我连续刷新它 3-4 次,那么它应该只在第一次被调用。
window.onbeforeunload = confirmClose;
function confirmClose() {
var refreshTime = new Date().getTime();
if (!isNaN(keyerAudit.auditStartTime) && (keyerAudit.auditStartTime != 0))
sessionStorage.setItem("FIRSTVISIT", refreshTime);
var refreshAuditTime = 0;
if (!isNaN(keyerAudit.auditStartTime) && (keyerAudit.auditStartTime != 0))
refreshAuditTime = (refreshTime - keyerAudit.auditStartTime) / 1000.0;
if (!isNaN(refreshAuditTime) && (refreshAuditTime != 0)) {
sessionStorage.setItem("DB", refreshAuditTime);
$.ajax({
url: '/auditTimecalculate',
type: 'POST',
async: false,
dataType: "json",
data: {
auditTime: refreshAuditTime
},
success: function(data) {
console.log("returned from /auditTimecalculate ");
console.log("the before refresh starttime was: ", keyerAudit.auditStartTime);
sessionStorage.setItem("FIRSTVISIT", keyerAudit.auditStartTime);
// refreshTime=undefined;
refreshAuditTime = undefined;
}
});
}
You can use a session variable like session["count"] = 1;
您可以使用会话变量,如
session["count"] = 1;
on first refresh and then check its value inside the function if its 1 then execute otherwise dont.第一次刷新,然后检查它在函数内的值,如果它是 1,则执行否则不要。
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