Difference between revisions of "World Factbook"
Jump to navigation
Jump to search
| Line 1: | Line 1: | ||
<pre id='shellbody' data-qtp='fetch'></pre> | <pre id='shellbody' data-qtp='fetch'></pre> | ||
==Get a button for each letter== | ==Get a button for each letter== | ||
* Show a button for each letter that a country can begin with | |||
* You can use a [Set|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set] to remove duplicates from a list. | |||
<div class=qu> | <div class=qu> | ||
<pre class=usr> | <pre class=usr> | ||
| Line 18: | Line 20: | ||
.then((r)=>r.json()) | .then((r)=>r.json()) | ||
.then((r)=>{ | .then((r)=>{ | ||
let letters = r.map(c=>c.name[0]); | let letters = new Set(r.map(c=>c.name[0])); | ||
for(let a of letters){ | for(let a of letters){ | ||
let b = document.createElement('button'); | let b = document.createElement('button'); | ||
Revision as of 09:25, 22 January 2022
Get a button for each letter
- Show a button for each letter that a country can begin with
- You can use a [Set|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set] to remove duplicates from a list.
fetch('/worldl.json')
.then((r)=>r.json())
.then((r)=>{
let letters = r.map(c=>c.name[0]);
for(let a of letters){
let b = document.createElement('button');
b.innerText = a;
document.body.append(b);
}
});
fetch('/worldl.json')
.then((r)=>r.json())
.then((r)=>{
let letters = new Set(r.map(c=>c.name[0]));
for(let a of letters){
let b = document.createElement('button');
b.innerText = a;
document.body.append(b);
}
});