javascript - 不断检查 URL 直到出现字符串，找到后运行 javascript 代码

Question

我需要一些有关此代码的帮助。我想读取当前的 URL，当 URL 中包含“#_ThankYou”时，我想向页面上的现有内容添加新内容，并且该 div 包含一些 javascript，用于显示来自广告 vendor 的广告。我有以下内容，但我想我可能会陷入无限循环。不确定我的编码是否正确。有人有好的建议吗？

<script type="text/javascript">
window.eddyCookieCount = 0;
window.eddyNumberAttempts = 0;
window.myInterval = setInterval(function() {
    if (window.location.href.indexOf("#_ThankYou") > window.eddyCookieCount) {
            jQuery('div.thankyou-container').append('<div>' + vm_load({
                "displayId": "12584", // Numeric unique ad display Id
                "publisherId": "33927", // Publisher ID 
                "campaign": "9380", // Numeric Publisher Campaign Id
                "maxResults": "3",
                "areaofstudy":     JSON.parse(jQuery.cookie('CategorySubCategorySpecialty')).CATEGORIES[0].text.replace('Business','1').replace('Criminal Justice & Legal','3').replace('Education','5').replace('Fine Arts & Design','2').replace('Health & Medicine','8').replace('Liberal Arts & Humanities','5').replace('Math, Science & Engineering','9').replace('Public Affairs & Social Sciences','13').replace('Religious Studies','5').replace('Technology','9').replace('Vocational Training',''),
                "md": "1"
            }) + '</div>');
    window.eddyNumberAttempts++;
    if (window.eddyNumberAttempts > 60) {
      window.eddyCookieCount = jQuery.cookie('CategorySubCategorySpecialty').length;
      window.eddyNumberAttempts = 0;
    }
  }
  else if (jQuery.cookie('CategorySubCategorySpecialty').length < window.eddyCookieCount) {
    window.eddyCookieCount = jQuery.cookie('CategorySubCategorySpecialty').length;
  }
}, 50);
</script>

Answer 1

无需进行间隔来观察要添加的哈希。

$(window).on('hashchange', function() {
     if (window.location.search === "#_ThankYou") {

    }
});

在您的代码中，当您处于网址更改时的状态时，我没有看到您取消间隔，因此它会不断触发。你需要取消它。

window.clearInterval(window.myInterval)