Set currency rate in JavaScript 10.10.25

Set currency rate in JavaScript 
```                                                                                                                                                               
async function set_rate(host) {                                                                                                                                   
  if (typeof Storage !== undefined) {                                                                                                                             
    const a = JSON.parse(await aget_api("https://" + host + "/sek.json"));                                                                                        
    localStorage.setItem("sek_dkk", a["dkk"]["rate"]);                                                                                                            
    localStorage.setItem("sek_eur", a["eur"]["rate"]);                                                                                                            
    localStorage.setItem("sek_usd", a["usd"]["rate"]);                                                                                                            
    localStorage.setItem("sek_expire", Math.floor(Date.now() / 1000) + 86400);                                                                                    
  }                                                                                                                                                               
}                                                                                                                                                                 
                                                                                                                                                                  
async function aget_api(url) {                                                                                                                                    
  return new Promise((resolve, reject) => {                                                                                                                       
    let xhr = new XMLHttpRequest();                                                                                                                               
    xhr.open("GET", url, true);                                                                                                                                   
    xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");                                                                                    
    xhr.onload = function () {                                                                                                                                    
      return resolve(xhr.responseText);                                                                                                                           
    };                                                                                                                                                            
    xhr.onerror = function () {                                                                                                                                   
      return reject(xhr.statusText);                                                                                                                              
    };                                                                                                                                                            
    xhr.send(null);                                                                                                                                               
  });                                                                                                                                                             
}                                                                                                                                                                 
                                                                                                                                                                  
async function set_page_currency(lang) {                                                                                                                          
  //console.log("...set page currency");                                                                                                                          
  let sek_dkk = localStorage.getItem("sek_dkk");                                                                                                                  
  let sek_eur = localStorage.getItem("sek_eur");                                                                                                                  
  let sek_usd = localStorage.getItem("sek_usd");                                                                                                                  
  let sek_expire = localStorage.getItem("sek_expire");                                                                                                            
  if (sek_dkk && sek_eur && sek_usd && sek_expire) {                                                                                                              
    let rate = sek_dkk;                                                                                                                                           
    let sym = "DKK";                                                                                                                                              
                                                                                                                                                                  
    if (lang === "en") {                                                                                                                                          
      rate = sek_usd;                                                                                                                                             
      sym = "USD";                                                                                                                                                
    } else if (lang === "de") {                                                                                                                                   
      rate = sek_eur;                                                                                                                                             
      sym = "EUR";                                                                                                                                                
    }                                                                                                                                                             
                                                                                                                                                                  
    let e = document.getElementsByTagName("bdi");                                                                                                                 
    for (let x = 0; x < e.length; x++) {                                                                                                                          
      const s = e[x].firstChild.textContent;                                                                                                                      
      if (is_number(s)) {                                                                                                                                         
        const n = parseFloat(s);                                                                                                                                  
        const r = parseFloat(sek_usd);                                                                                                                            
        const res = Math.round(n * rate * 100) / 100;                                                                                                             
        e[x].firstChild.textContent = res;                                                                                                                        
        e[x].getElementsByTagName("span")[0].firstChild.textContent = " " + sym;                                                                                  
      }                                                                                                                                                           
    }                                                                                                                                                             
  }                                                                                                                                                               
}                                                                                                                                                                 
                                                                                                                                                                  
function is_number(n) {                                                                                                                                           
  return !!n.trim() && n * 0 == 0;                                                                                                                                
}                       
```
tags: wordpressrate

Anonymous

Set currency rate in JavaScript 10.10.25

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