6 examples of 'javascript get referrer' in JavaScript

242
function makeReferrer(url, hashObj) {
243
    var referrer = '';
244
    var conjMark = url.indexOf('?') < 0 ? '?' : '&';
245
    var urlData = '';
246
    for (var key in hashObj) {
247
        urlData += '&' + key + '=' + hashObj[key];
248
    }
249
    urlData = urlData.slice(1);
250
    if (url.indexOf('#') < 0 && urlData) {
251
        referrer = url + conjMark + urlData;
252
    }
253
    else {
254
        referrer = url.replace('#', conjMark + urlData + '#');
255
    }
256
    return referrer;
257
}

116
function getReferrerUrl() {
117
  let referer = '';
118
  if (window.self !== window.top) {
119
    try {
120
      referer = window.top.document.referrer;
121
    } catch (e) { }
122
  } else {
123
    referer = document.referrer;
124
  }
125
  return referer;
126
}

151
function getDomain(referer) {
152
  if (referer) {
153
    let domainA = document.createElement('a');
154
    domainA.href = referer;
155
    return domainA.hostname;
156
  }
157
}

3
function getUrl (r, forBrowser) {
4
  if (!r) return null
5
  if (/^[\w-]+\/[\w\.-]+(#[a-z0-9]*)?$/.test(r)) {
6
    if (forBrowser)
7
      r = r.replace("#", "/tree/")
8
    return "https://github.com/" + r
9
  }
10
11
  return null
12
}

7
public async getUrl(): Promise {
8
  return parse(await page.evaluate('location.href'));
9
}

11
function getRefererDomain() : string {
12
    return (window.xprops && window.xprops.getParentDomain)
13
        ? window.xprops.getParentDomain()
14
        : window.location.host;
15
}