[英]Why jQuery keyup is not working while I try to build keyboard shortcut on my website?
我正在嘗試在我的網站上構建可訪問性的鍵盤快捷鍵。 例如,當用戶按下“1”時,我想將他移到家中。 當用戶按下'2'時,到另一頁面。
我正在嘗試使用keyup,但它不起作用。
$(function() {
$(document).keyup(function(e) {
if (e.which == 1) {
console.log('1');
window.location.href = '/';
} else if (e.which == 2) {
window.location.href = '/escolas';
} else if (e.which == 3) {
window.location.href = '/noticias';
} else if (e.which == 4) {
window.location.href = '/eventos';
} else if (e.which == 5) {
window.location.href = '/contato';
}
});
});
有人能幫我嗎? 當我按'1'時,它不記錄1。
這是因為'1'的關鍵代碼不是1而是49(或者是小鍵盤上的那個)。
選中此項以查看密鑰代碼:
$(function() { $(document).keyup(function(e) { $('body').text(e.type + ' ' + e.which); }); });
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
您使用了錯誤的密鑰代碼。 請參閱此
$(function() { $(document).keyup(function(e) { if (e.which == 49) { console.log('1'); window.location.href = '/'; } else if (e.which == 50) { window.location.href = '/escolas'; } else if (e.which == 51) { window.location.href = '/noticias'; } else if (e.which == 52) { window.location.href = '/eventos'; } else if (e.which == 53) { window.location.href = '/contato'; } }); });
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
您可以通過String.fromCharCode(event.which);
獲取關鍵字符String.fromCharCode(event.which);
,然后直接與實際角色進行比較:
$(function() {
$(document).keyup(function(e) {
if (e.key) {
var key = e.key;
} else {
var key = String.fromCharCode(e.which || e.keyCode);
}
if (key == 1) {
console.log('1');
window.location.href = '/';
} else if (key == 2) {
window.location.href = '/escolas';
} else if (key == 3) {
window.location.href = '/noticias';
} else if (key == 4) {
window.location.href = '/eventos';
} else if (key == 5) {
window.location.href = '/contato';
}
});
});
e.which給你ASCII值。 要將ASCII轉換為字符,請使用String.fromCharCode(e.which) 。
$(function () {
$(document).keyup(function (e) {
if (String.fromCharCode(e.which) == 1) {
window.location.href = '/';
} else if (String.fromCharCode(e.which) == 2) {
window.location.href = '/escolas';
} else if (String.fromCharCode(e.which) == 3) {
window.location.href = '/noticias';
} else if (String.fromCharCode(e.which) == 4) {
window.location.href = '/eventos';
} else if (String.fromCharCode(e.which) == 5) {
window.location.href = '/contato';
}
});
});
如果你想要幻想:
$(document).ready(function() { 'use strict'; const addresses = [ { codes: [49, 97], path: '/' }, { codes: [50, 98], path: '/escolas' }, { codes: [51, 99], path: '/noticias' }, { codes: [52, 100], path: '/eventos' }, { codes: [52, 101], path: '/contato' } ] $(document).on("keyup", evt => { const key = evt.which; addresses.map(address => { if(address.codes.filter(code => code === key).length) window.location.href = address.path; }) }); })
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
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