Pehea e hoʻomākaukau ai i kahi kahua puka me ka lā o kēia lā a me JavaScript a i ʻole JQuery
ʻOiai ʻo ka nui o nā hāʻina e hāʻawi i ka manawa e mālama ai i ka lā me kēlā me kēia puka komo, aia kekahi mau manawa ʻaʻole ia he koho. Paipai mākou i kā mākou mea kūʻai aku e hoʻohui i kahi kahua huna i kā lākou pūnaewele a hāʻawi i kēia ʻike me ke komo ʻana i hiki iā lākou ke nānā i ka wā i hoʻokomo ʻia ai nā palapala. Ke hoʻohana nei i ka JavaScript, maʻalahi kēia.
Pehea e hoʻomākaukau ai i kahi kahua puka me ka lā o kēia lā a me ka JavaScript
<!DOCTYPE html>
<html>
<head>
<title>Date Prepopulation with JavaScript</title>
</head>
<body>
<form>
<!-- Hidden field for the date -->
<input type="hidden" id="hiddenDateField" name="hiddenDateField">
</form>
<script>
// Function to get today's date in the desired format
function getFormattedDate() {
const today = new Date();
const formattedDate = today.toLocaleDateString('en-US', {
year: 'numeric',
month: '2-digit',
day: '2-digit'
});
return formattedDate;
}
// Use JavaScript to set the value of the hidden field to today's date
document.getElementById('hiddenDateField').value = getFormattedDate();
</script>
</body>
</html>
E hoʻokaʻawale i ka HTML i hāʻawi ʻia a me ka code JavaScript i kēlā me kēia pae:
<!DOCTYPE html>
a<html>
: He mau palapala HTML maʻamau kēia e hōʻike ana he palapala HTML5 kēia.<head>
: Hoʻohana mau ʻia kēia ʻāpana e hoʻokomo i nā metadata e pili ana i ka palapala, e like me ke poʻo o ka ʻaoʻao pūnaewele, i hoʻonohonoho ʻia me ka<title>
huapalapala.<title>
: Hoʻonoho kēia i ke poʻo inoa o ka ʻaoʻao pūnaewele i "Date Prepopulation with JavaScript."<body>
: ʻO kēia ka wahi maʻiʻo nui o ka ʻaoʻao pūnaewele kahi āu e kau ai i nā ʻike ʻike a me nā mea hoʻohana.<form>
: He ʻano mea i hiki ke loaʻa nā kahua hoʻokomo. I kēia hihia, hoʻohana ʻia ia e loaʻa i ka māla hoʻokomo huna e hoʻopiha ʻia me ka lā o kēia lā.<input type="hidden" id="hiddenDateField" name="hiddenDateField">
: He kahua komo huna keia. ʻAʻole ʻike ʻia ma ka ʻaoʻao akā hiki ke mālama i ka ʻikepili. Hāʻawi ʻia i kahi ID o "hiddenDateField" a me kahi inoa o "hiddenDateField" no ka ʻike a hoʻohana ʻana ma JavaScript.<script>
: ʻO kēia ka hōʻailona wehe no ka poloka script JavaScript, kahi e hiki ai iā ʻoe ke kākau i ka code JavaScript.function getFormattedDate() { ... }
: Hōʻike kēia i kahi hana JavaScript i kapa ʻiagetFormattedDate()
. I loko o kēia hana:- Hoʻokumu ia i kahi mea hou
Date
mea e hōʻike ana i ka lā a me ka manawa e hoʻohana neiconst today = new Date();
. - Hoʻopili ia i ka lā i loko o kahi kaula me ke ʻano makemake (mm/dd/yyyy) me ka hoʻohana ʻana
today.toLocaleDateString()
. ka'en-US'
Hōʻike ka manaʻo i ka ʻāina (ʻAmelika ʻAmelika) no ka hoʻopili ʻana, a me ka mea meyear
,month
, aday
Nā waiwai e wehewehe i ka hōpili lā.
- Hoʻokumu ia i kahi mea hou
return formattedDate;
: Hoʻihoʻi kēia laina i ka lā i hoʻopaʻa ʻia ma ke ʻano he kaula.document.getElementById('hiddenDateField').value = getFormattedDate();
: Keia laina code:- hana
document.getElementById('hiddenDateField')
e koho i ke kahua komo huna me ka ID "hiddenDateField." - Hoʻonohonoho i ka
value
waiwai o ke kahua hookomo i waeia i ka waiwai i hoihoiia e kagetFormattedDate()
hana. Hoʻopiha kēia i ke kahua huna me ka lā o kēia lā ma ke ʻano i kuhikuhi ʻia.
- hana
ʻO ka hopena, ʻo ia ka wā e hoʻouka ai ka ʻaoʻao, ua hoʻopiha ʻia ke kahua hoʻokomo huna me ka ID "hiddenDateField" me ka lā o kēia lā ma ke ʻano mm/dd/yyyy me ke alakaʻi ʻole i nā zeroes, e like me ka mea i kuhikuhi ʻia ma ka getFormattedDate()
hana.
Pehea e hoʻomākaukau ai i kahi kahua puka me ka lā o kēia lā a me ka jQuery
<!DOCTYPE html>
<html>
<head>
<title>Date Prepopulation with jQuery and JavaScript Date Object</title>
<!-- Include jQuery from a CDN -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
<form>
<!-- Hidden field for the date -->
<input type="hidden" id="hiddenDateField" name="hiddenDateField">
</form>
<script>
// Use jQuery to set the value of the hidden field to today's date
$(document).ready(function() {
const today = new Date();
const formattedDate = today.toLocaleDateString('en-US', {
year: 'numeric',
month: '2-digit',
day: '2-digit'
});
$('#hiddenDateField').val(formattedDate);
});
</script>
</body>
</html>
Hōʻike kēia code HTML a JavaScript i ke ʻano o ka hoʻohana ʻana i ka jQuery e hoʻopiha i kahi kahua hoʻokomo huna me ka lā o kēia lā, i hoʻohālikelike ʻia e like me mm/dd/yyyy, me ke alakaʻi ʻole i nā zeroes. E hoʻokaʻawale kākou i kēlā me kēia ʻanuʻu:
<!DOCTYPE html>
a<html>
: He mau palapala HTML maʻamau kēia e hōʻike ana he palapala HTML5 kēia.<head>
: Hoʻohana ʻia kēia ʻāpana no ka hoʻokomo ʻana i nā metadata a me nā kumuwaiwai no ka ʻaoʻao pūnaewele.<title>
: Hoʻonohonoho i ke poʻo inoa o ka ʻaoʻao pūnaewele i "Date Prepopulation with jQuery and JavaScript Date Object."<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
: Aia kēia laina i ka waihona jQuery ma ke kuhikuhi ʻana i kona kumu mai kahi pūnaewele hoʻouna ʻike (CDN). E hōʻoia i ka loaʻa ʻana o ka waihona jQuery no ka hoʻohana ʻana ma ka ʻaoʻao pūnaewele.<body>
: ʻO kēia ka wahi maʻiʻo nui o ka ʻaoʻao pūnaewele kahi āu e kau ai i nā ʻike ʻike a me nā mea hoʻohana.<form>
: He ʻano HTML i hoʻohana ʻia no ka loaʻa ʻana o nā kahua hoʻokomo. I kēia hihia, hoʻohana ʻia ia e hoʻopili i ke kahua hoʻokomo huna.<input type="hidden" id="hiddenDateField" name="hiddenDateField">
: He kahua komo huna ʻaʻole e ʻike ʻia ma ka ʻaoʻao pūnaewele. Hāʻawi ʻia kahi ID o "hiddenDateField" a me kahi inoa o "hiddenDateField."<script>
: ʻO kēia ka hōʻailona wehe no kahi poloka script JavaScript kahi e hiki ai iā ʻoe ke kākau i ka code JavaScript.$(document).ready(function() { ... });
: He poloka helu jQuery kēia. Hoʻohana ia i ka$(document).ready()
hana e hōʻoia i ka holo ʻana o ke code ma hope o ka hoʻopiha piha ʻana o ka ʻaoʻao. I loko o kēia hana:const today = new Date();
hana houDate
mea e hōʻike ana i ka lā a me ka manawa.const formattedDate = today.toLocaleDateString('en-US', { ... });
hoʻopololei i ka lā i loko o kahi kaula me ke ʻano i makemake ʻia (mm/dd/yyyy) me ka hoʻohana ʻana i katoLocaleDateString
hana.
$('#hiddenDateField').val(formattedDate);
koho i ke kahua hoʻokomo huna me ka ID "hiddenDateField" me ka hoʻohana ʻana i ka jQuery a hoʻonohonoho i kānavalue
i ka lā i hoʻonohonoho ʻia. Hoʻopuka maikaʻi kēia i ke kahua huna me ka lā o kēia lā ma ke ʻano i kuhikuhi ʻia.
Hoʻomaʻamaʻa ka code jQuery i ke kaʻina o ke koho ʻana a me ka hoʻololi ʻana i ke kahua komo huna i hoʻohālikelike ʻia me JavaScript maʻemaʻe. Ke hoʻouka ʻia ka ʻaoʻao, hoʻopiha ʻia ka māla hoʻokomo huna me ka lā o kēia lā ma ke ʻano mm/dd/yyyy, a ʻaʻohe mea alakaʻi zeroes, e like me ka mea i ʻōlelo ʻia ma ka formattedDate
ʻano.