Created
March 23, 2022 23:26
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Autocomplete search using vanilla JavaScript
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <title>Create an autocomplete search using vanilla JavaScript</title> | |
| </head> | |
| <body> | |
| <div> | |
| <input type="text" id="autocomplete" placeholder="Select a color..."></input> | |
| <ul id="results"></ul> | |
| </div> | |
| <script> | |
| const data = ["red", "blue", "green", "yellow", "purple", "orange", "black", "white", "brown"]; | |
| const autocomplete = document.getElementById("autocomplete"); | |
| const resultsHTML = document.getElementById("results"); | |
| autocomplete.oninput = function () { | |
| let results = []; | |
| const userInput = this.value; | |
| resultsHTML.innerHTML = ""; | |
| if (userInput.length > 0) { | |
| results = getResults(userInput); | |
| resultsHTML.style.display = "block"; | |
| for (i = 0; i < results.length; i++) { | |
| resultsHTML.innerHTML += "<li>" + results[i] + "</li>"; | |
| } | |
| } | |
| }; | |
| function getResults(input) { | |
| const results = []; | |
| for (i = 0; i < data.length; i++) { | |
| if (input === data[i].slice(0, input.length)) { | |
| results.push(data[i]); | |
| } | |
| } | |
| return results; | |
| } | |
| resultsHTML.onclick = function (event) { | |
| const setValue = event.target.innerText; | |
| autocomplete.value = setValue; | |
| this.innerHTML = ""; | |
| }; | |
| </script> | |
| </body> | |
| </html> |
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Very nice! I am not sure it is really an autocomplete (because you can't complete the input automatically...) but at least it lists the possible choices.