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[英]How do I check which radio button is selected when there are multiple radio buttons with the same name? (using jquery)
[英]How do I get multiple outputs from a 2D array using radio buttons?
我正在創建一個網頁,允許用戶根據難度搜索遠足徑。 他們將 select 選擇“簡單”或“困難”單選按鈕,並將提供相應的線索。
這是我的 HTML:
遠足荷蘭! <meta content="width=device-width, initial-scale=1" name="viewport" /> <link rel="stylesheet" type="text/css" href="style.css">
<script src="src/index.js"></script>
<script src="src/index.js"></script>
我已經將路徑名稱以及難度和長度存儲在一個二維數組中。 我已經能夠做到這一點,因此每個單選按鈕都會顯示一個路徑名稱,但是當我將另一條“簡單”路徑添加到數組時,只會顯示一個名稱。 看起來它正在跳過數組的第一行。 我如何獲得 output 多個路徑名稱?
這是我的腳本:
//Allows console.log to display what radio button was selected. let chosen; document.getElementById('easy').onclick = function () { console.log("Easy") chosen = "Easy"; } document.getElementById('hard').onclick = function () { console.log("Hard") chosen = "Hard"; } function displayArray() { //Two dimensional array let hikes = [ ['Easy','Silver Mine Head Path', 5], ['Hard','White Horse Path', 4], ['Easy','Father Troy', 3] ]; console.log(hikes) let results = []; console.log(results); for(i = 0; i < hikes.length; i++) { if(hikes[i][0] == chosen){ //Checks row for difficulty console.log("Row: "+chosen) results[i] = hikes[i][1]; //Shows corresponding hike with chosen difficulty document.getElementById("output").innerHTML //Shows users their result = "Trail: "+results[i]; } } }
嘗試用這個替換你的 for 循環:
for (i = 0; i < hikes.length; i++) {
if (hikes[i][0] == chosen) {
//Checks row for difficulty
console.log("Row: " + chosen);
results.push(hikes[i][1]); //Shows corresponding hike with chosen difficulty
}
}
document.getElementById("output").innerHTML = "Trail(s): " + results.join(", "); //Shows users their result
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