Question

当函数满足某些条件时如何使用clearInterval函数？

代码：-

var checkRecordlock = function() {
  jQuery.ajax({
    url: "http://localhost/project/crl/Mzk="
  }).done(function(data) {
    var is_locked = data.locked;
    if (is_locked == 1) {
      alert("Locked");
    }
  });
}

checkRecordlock();
var checkRecordlockIntervalId = setInterval(checkRecordlock, 100);

如果is_locked == 1，我想清除函数的间隔。

Answer 1

checkRecordlock();
var checkRecordlockIntervalId = setInterval(checkRecordlock, 100);

function checkRecordlock() {
  jQuery.ajax({
    url: "http://localhost/project/crl/Mzk="
  }).done(function(data) {
    var is_locked = data.locked;
    if (is_locked == 1) {
      clearInterval(checkRecordlockIntervalId);
    }
  });
}

Answer 2

您无需在间隔前致电checkRecordlock。为了在条件达到时停止它，请使用clearInterval并将其传递给checkRecordlockIntervalId。这是一个示例：

var checkRecordlock = function() {
    is_locked++;
    console.log(is_locked);
    if (is_locked == 10) {
      alert("Locked");
      clearInterval(checkRecordlockIntervalId)
    }
}
let is_locked = 0;
//checkRecordlock();
var checkRecordlockIntervalId = setInterval(checkRecordlock, 100);

当函数满足某些条件时使用clearInterval函数

2 个答案: