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06 - Type Ahead #12

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06 - Type Ahead #12

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78 changes: 78 additions & 0 deletions 06 - Type Ahead/changi.html
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Original file line number Diff line number Diff line change
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Type Ahead 👀</title>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<form class="search-form">
<input type="text" class="search" placeholder="City or State" />
<ul class="suggestions">
<li>Filter for a city</li>
<li>or a state</li>
</ul>
</form>
<script>
const endpoint =
"https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json";

const cities = [];

fetch(endpoint)
.then((res) => res.json())
.then((data) => {
cities.push(...data);
});

function numberWithCommas(x) {
return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}

function findMatches(wordToMatch, cities) {
return cities.filter((place) => {
const regex = new RegExp(wordToMatch, "gi");
return place.city.match(regex) || place.state.match(regex);
});
}

function displayMatches() {
const matchArray = findMatches(this.value, cities);

matchArray.sort((a, b) => {
return a.city < b.city ? -1 : 1;
});

const html = matchArray
.map((place) => {
const regex = new RegExp(this.value, "gi");
const cityName = place.city.replace(
regex,
`<span class="hl">${this.value}</span>`
);
const stateName = place.state.replace(
regex,
`<span class="hl">${this.value}</span>`
);

return `
<li>
<span class="name">${cityName}, ${stateName}</span>
<span class="population">${numberWithCommas(
place.population
)}</span>
</li>
`;
})
.join("");
suggestions.innerHTML = html;
}

const searchInputs = document.querySelector(".search");
const suggestions = document.querySelector(".suggestions");

searchInputs.addEventListener("change", displayMatches);
searchInputs.addEventListener("keyup", displayMatches);
</script>
</body>
</html>