Difference between revisions of "DOM working with data"

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<pre id='shellbody' data-qtp='DOM'></pre>
<pre id='shellbody' data-qtp='DOM'></pre>
== Get the name from the number ==
== Get the name from the number ==
*You can obtain data form the server using a fetch call.
*You can obtain data from the server using a fetch call.
*In these examples you will be getting data from /worldl.json this is a list of 195 countries in json format
*In these examples you will be getting data from /worldl.json this is a list of 195 countries in json format
<div class=qu>
<div class=qu>
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     let tgt = r[50];
     let tgt = r[50];
     document.body.innerHTML = tgt.name;
     document.body.innerHTML = tgt.name;
  });
</pre>
</div>
== Get the details from the number ==
<pre class=usr>
fetch('/worldl.json')
  .then((r)=>r.json())
  .then((r)=>{
    let tgt = r[42];
    document.body.innerHTML = `
  <div>${tgt.name} ({$tgt.continent})</div>
  <div>${tgt.capital}</div>
  <div>population: ${tgt.population}</div>
`;
  });
</pre>
<pre class=ans>
fetch('/worldl.json')
  .then((r)=>r.json())
  .then((r)=>{
    let tgt = r[50];
    document.body.innerHTML = `
  <div>${tgt.name} ({$tgt.continent})</div>
  <div>${tgt.capital}</div>
  <div>population: ${tgt.population}</div>
`;
   });
   });
</pre>
</pre>
</div>
</div>

Revision as of 16:31, 21 August 2021


Get the name from the number

  • You can obtain data from the server using a fetch call.
  • In these examples you will be getting data from /worldl.json this is a list of 195 countries in json format
  • The program snippet shows the name of country 42.
  • Change it so it shows the name of country 50.
  • See if you can find your country.
fetch('/worldl.json')
  .then((r)=>r.json())
  .then((r)=>{
     let tgt = r[42];
     document.body.innerHTML = tgt.name;
  });
fetch('/worldl.json')
  .then((r)=>r.json())
  .then((r)=>{
     let tgt = r[50];
     document.body.innerHTML = tgt.name;
  });

Get the details from the number

fetch('/worldl.json')
  .then((r)=>r.json())
  .then((r)=>{
     let tgt = r[42];
     document.body.innerHTML = `
  <div>${tgt.name} ({$tgt.continent})</div>
  <div>${tgt.capital}</div>
  <div>population: ${tgt.population}</div>
`;
  });
fetch('/worldl.json')
  .then((r)=>r.json())
  .then((r)=>{
     let tgt = r[50];
     document.body.innerHTML = `
  <div>${tgt.name} ({$tgt.continent})</div>
  <div>${tgt.capital}</div>
  <div>population: ${tgt.population}</div>
`;
  });