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我只是想在我的網站上更改日期格式。其實目前我得到的結果是這樣的：（星期四2013年3月14日），我想改變這樣的：（2013年3月14日） 請幫助如何在jQuery中更改日期格式？
我的代碼是： 在HTML
<input type="text" id="date_from" name="date_from" >
var picker = new Pikaday(
{
field: document.getElementById('date_from'),
firstDay: 1,
yearRange: [2013,2015],
});
var picker = new Pikaday(
{
field: document.getElementById('date_to'),
firstDay: 1,
yearRange: [2013,2015],
});
結束HTML
包含文件（pikaday.js）
(function(window, document, undefined)
{
'use strict';
/**
* feature detection and helper functions
*/
var hasMoment = typeof window.moment === 'function',
hasEventListeners = !!window.addEventListener,
sto = window.setTimeout,
addEvent = function(el, e, callback, capture)
{
if (hasEventListeners) {
el.addEventListener(e, callback, !!capture);
} else {
el.attachEvent('on' + e, callback);
}
},
removeEvent = function(el, e, callback, capture)
{
if (hasEventListeners) {
el.removeEventListener(e, callback, !!capture);
} else {
el.detachEvent('on' + e, callback);
}
},
fireEvent = function(el, eventName, data)
{
var ev;
if (document.createEvent) {
ev = document.createEvent('HTMLEvents');
ev.initEvent(eventName, true, false);
ev = extend(ev, data);
el.dispatchEvent(ev);
} else if (document.createEventObject) {
ev = document.createEventObject();
ev = extend(ev, data);
el.fireEvent('on' + eventName, ev);
}
},
trim = function(str)
{
return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g,'');
},
hasClass = function(el, cn)
{
return (' ' + el.className + ' ').indexOf(' ' + cn + ' ') !== -1;
},
addClass = function(el, cn)
{
if (!hasClass(el, cn)) {
el.className = (el.className === '') ? cn : el.className + ' ' + cn;
}
},
removeClass = function(el, cn)
{
el.className = trim((' ' + el.className + ' ').replace(' ' + cn + ' ', ' '));
},
isArray = function(obj)
{
return (/Array/).test(Object.prototype.toString.call(obj));
},
isDate = function(obj)
{
return (/Date/).test(Object.prototype.toString.call(obj)) && !isNaN(obj.getTime());
},
isLeapYear = function(year)
{
// solution by Matti Virkkunen: http://stackoverflow.com/a/4881951
return year % 4 === 0 && year % 100 !== 0 || year % 400 === 0;
},
getDaysInMonth = function(year, month)
{
return [31, isLeapYear(year) ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month];
},
setToStartOfDay = function(date)
{
if (isDate(date)) date.setHours(0,0,0,0);
},
compareDates = function(a,b)
{
// weak date comparison (use setToStartOfDay(date) to ensure correct result)
return a.getTime() === b.getTime();
},
extend = function(to, from, overwrite)
{
var prop, hasProp;
for (prop in from) {
hasProp = to[prop] !== undefined;
if (hasProp && typeof from[prop] === 'object' && from[prop].nodeName === undefined) {
if (isDate(from[prop])) {
if (overwrite) {
to[prop] = new Date(from[prop].getTime());
}
}
else if (isArray(from[prop])) {
if (overwrite) {
to[prop] = from[prop].slice(0);
}
} else {
to[prop] = extend({}, from[prop], overwrite);
}
} else if (overwrite || !hasProp) {
to[prop] = from[prop];
}
}
return to;
},
/**
* defaults and localisation
*/
defaults = {
// bind the picker to a form field
field: null,
// automatically show/hide the picker on `field` focus (default `true` if `field` is set)
bound: undefined,
// the default output format for `.toString()` and `field` value
format: 'YYYY-MM-DD',
// the initial date to view when first opened
defaultDate: null,
// make the `defaultDate` the initial selected value
setDefaultDate: false,
// first day of week (0: Sunday, 1: Monday etc)
firstDay: 0,
// the minimum/earliest date that can be selected
minDate: null,
// the maximum/latest date that can be selected
maxDate: null,
// number of years either side, or array of upper/lower range
yearRange: 10,
// used internally (don't config outside)
minYear: 0,
maxYear: 9999,
minMonth: undefined,
maxMonth: undefined,
isRTL: false,
// how many months are visible (not implemented yet)
numberOfMonths: 1,
// internationalization
i18n: {
previousMonth : 'Previous Month',
nextMonth : 'Next Month',
months : ['January','February','March','April','May','June','July','August','September','October','November','December'],
weekdays : ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'],
weekdaysShort : ['Sun','Mon','Tue','Wed','Thu','Fri','Sat']
},
// callback function
onSelect: null,
onOpen: null,
onClose: null,
onDraw: null
},
/**
* templating functions to abstract HTML rendering
*/
renderDayName = function(opts, day, abbr)
{
day += opts.firstDay;
while (day >= 7) {
day -= 7;
}
return abbr ? opts.i18n.weekdaysShort[day] : opts.i18n.weekdays[day];
},
renderDay = function(i, isSelected, isToday, isDisabled, isEmpty)
{
if (isEmpty) {
return '<td class="is-empty"></td>';
}
var arr = [];
if (isDisabled) {
arr.push('is-disabled');
}
if (isToday) {
arr.push('is-today');
}
if (isSelected) {
arr.push('is-selected');
}
return '<td data-day="' + i + '" class="' + arr.join(' ') + '"><button class="pika-button" type="button">' + i + '</button>' + '</td>';
},
renderRow = function(days, isRTL)
{
return '<tr>' + (isRTL ? days.reverse() : days).join('') + '</tr>';
},
renderBody = function(rows)
{
return '<tbody>' + rows.join('') + '</tbody>';
},
renderHead = function(opts)
{
var i, arr = [];
for (i = 0; i < 7; i++) {
arr.push('<th scope="col"><abbr title="' + renderDayName(opts, i) + '">' + renderDayName(opts, i, true) + '</abbr></th>');
}
return '<thead>' + (opts.isRTL ? arr.reverse() : arr).join('') + '</thead>';
},
renderTitle = function(instance)
{
var i, j, arr,
opts = instance._o,
month = instance._m,
year = instance._y,
isMinYear = year === opts.minYear,
isMaxYear = year === opts.maxYear,
html = '<div class="pika-title">',
prev = true,
next = true;
for (arr = [], i = 0; i < 12; i++) {
arr.push('<option value="' + i + '"' +
(i === month ? ' selected': '') +
((isMinYear && i < opts.minMonth) || (isMaxYear && i > opts.maxMonth) ? 'disabled' : '') + '>' +
opts.i18n.months[i] + '</option>');
}
html += '<div class="pika-label">' + opts.i18n.months[month] + '<select class="pika-select pika-select-month">' + arr.join('') + '</select></div>';
if (isArray(opts.yearRange)) {
i = opts.yearRange[0];
j = opts.yearRange[1] + 1;
} else {
i = year - opts.yearRange;
j = 1 + year + opts.yearRange;
}
for (arr = []; i < j && i <= opts.maxYear; i++) {
if (i >= opts.minYear) {
arr.push('<option value="' + i + '"' + (i === year ? ' selected': '') + '>' + (i) + '</option>');
}
}
html += '<div class="pika-label">' + year + '<select class="pika-select pika-select-year">' + arr.join('') + '</select></div>';
if (isMinYear && (month === 0 || opts.minMonth >= month)) {
prev = false;
}
if (isMaxYear && (month === 11 || opts.maxMonth <= month)) {
next = false;
}
html += '<button class="pika-prev' + (prev ? '' : ' is-disabled') + '" type="button">' + opts.i18n.previousMonth + '</button>';
html += '<button class="pika-next' + (next ? '' : ' is-disabled') + '" type="button">' + opts.i18n.nextMonth + '</button>';
return html += '</div>';
},
renderTable = function(opts, data)
{
return '<table cellpadding="0" cellspacing="0" class="pika-table">' + renderHead(opts) + renderBody(data) + '</table>';
};
/**
* Pikaday constructor
*/
window.Pikaday = function(options)
{
var self = this,
opts = self.config(options);
self._onMouseDown = function(e)
{
if (!self._v) {
return;
}
e = e || window.event;
var target = e.target || e.srcElement;
if (!target) {
return;
}
if (!hasClass(target, 'is-disabled')) {
if (hasClass(target, 'pika-button') && !hasClass(target, 'is-empty')) {
self.setDate(new Date(self._y, self._m, parseInt(target.innerHTML, 10)));
if (opts.bound) {
sto(function() {
self.hide();
}, 100);
}
return;
}
else if (hasClass(target, 'pika-prev')) {
self.prevMonth();
}
else if (hasClass(target, 'pika-next')) {
self.nextMonth();
}
}
if (!hasClass(target, 'pika-select')) {
if (e.preventDefault) {
e.preventDefault();
} else {
e.returnValue = false;
return false;
}
} else {
self._c = true;
}
};
self._onChange = function(e)
{
e = e || window.event;
var target = e.target || e.srcElement;
if (!target) {
return;
}
if (hasClass(target, 'pika-select-month')) {
self.gotoMonth(target.value);
}
else if (hasClass(target, 'pika-select-year')) {
self.gotoYear(target.value);
}
};
self._onInputChange = function(e)
{
var date;
if (e.firedBy === self) {
return;
}
if (hasMoment) {
date = window.moment(opts.field.value, opts.format);
date = date ? date.toDate() : null;
}
else {
date = new Date(Date.parse(opts.field.value));
}
self.setDate(isDate(date) ? date : null);
if (!self._v) {
self.show();
}
};
self._onInputFocus = function()
{
self.show();
};
self._onInputClick = function()
{
self.show();
};
self._onInputBlur = function()
{
if (!self._c) {
self._b = sto(function() {
self.hide();
}, 50);
}
self._c = false;
};
self._onClick = function(e)
{
e = e || window.event;
var target = e.target || e.srcElement,
pEl = target;
if (!target) {
return;
}
if (!hasEventListeners && hasClass(target, 'pika-select')) {
if (!target.onchange) {
target.setAttribute('onchange', 'return;');
addEvent(target, 'change', self._onChange);
}
}
do {
if (hasClass(pEl, 'pika-single')) {
return;
}
}
while ((pEl = pEl.parentNode));
if (self._v && target !== opts.field) {
self.hide();
}
};
self.el = document.createElement('div');
self.el.className = 'pika-single' + (opts.isRTL ? ' is-rtl' : '');
addEvent(self.el, 'mousedown', self._onMouseDown, true);
addEvent(self.el, 'change', self._onChange);
if (opts.field) {
if (opts.bound) {
document.body.appendChild(self.el);
} else {
opts.field.parentNode.insertBefore(self.el, opts.field.nextSibling);
}
addEvent(opts.field, 'change', self._onInputChange);
if (!opts.defaultDate) {
if (hasMoment && opts.field.value) {
opts.defaultDate = window.moment(opts.field.value, opts.format).toDate();
} else {
opts.defaultDate = new Date(Date.parse(opts.field.value));
}
opts.setDefaultDate = true;
}
}
var defDate = opts.defaultDate;
if (isDate(defDate)) {
if (opts.setDefaultDate) {
self.setDate(defDate, true);
} else {
self.gotoDate(defDate);
}
} else {
self.gotoDate(new Date());
}
if (opts.bound) {
this.hide();
self.el.className += ' is-bound';
addEvent(opts.field, 'click', self._onInputClick);
addEvent(opts.field, 'focus', self._onInputFocus);
addEvent(opts.field, 'blur', self._onInputBlur);
} else {
this.show();
}
};
/**
* public Pikaday API
*/
window.Pikaday.prototype = {
/**
* configure functionality
*/
config: function(options)
{
if (!this._o) {
this._o = extend({}, defaults, true);
}
var opts = extend(this._o, options, true);
opts.isRTL = !!opts.isRTL;
opts.field = (opts.field && opts.field.nodeName) ? opts.field : null;
opts.bound = !!(opts.bound !== undefined ? opts.field && opts.bound : opts.field);
var nom = parseInt(opts.numberOfMonths, 10) || 1;
opts.numberOfMonths = nom > 4 ? 4 : nom;
if (!isDate(opts.minDate)) {
opts.minDate = false;
}
if (!isDate(opts.maxDate)) {
opts.maxDate = false;
}
if ((opts.minDate && opts.maxDate) && opts.maxDate < opts.minDate) {
opts.maxDate = opts.minDate = false;
}
if (opts.minDate) {
setToStartOfDay(opts.minDate);
opts.minYear = opts.minDate.getFullYear();
opts.minMonth = opts.minDate.getMonth();
}
if (opts.maxDate) {
setToStartOfDay(opts.maxDate);
opts.maxYear = opts.maxDate.getFullYear();
opts.maxMonth = opts.maxDate.getMonth();
}
if (isArray(opts.yearRange)) {
var fallback = new Date().getFullYear() - 10;
opts.yearRange[0] = parseInt(opts.yearRange[0], 10) || fallback;
opts.yearRange[1] = parseInt(opts.yearRange[1], 10) || fallback;
} else {
opts.yearRange = Math.abs(parseInt(opts.yearRange, 10)) || defaults.yearRange;
if (opts.yearRange > 100) {
opts.yearRange = 100;
}
}
return opts;
},
/**
* return a formatted string of the current selection (using Moment.js if available)
*/
toString: function(format)
{
return !isDate(this._d) ? '' : hasMoment ? window.moment(this._d).format(format || this._o.format) : this._d.toDateString();
},
/**
* return a Moment.js object of the current selection (if available)
*/
getMoment: function()
{
return hasMoment ? window.moment(this._d) : null;
},
/**
* set the current selection from a Moment.js object (if available)
*/
setMoment: function(date)
{
if (hasMoment && window.moment.isMoment(date)) {
this.setDate(date.toDate());
}
},
/**
* return a Date object of the current selection
*/
getDate: function()
{
return isDate(this._d) ? new Date(this._d.getTime()) : null;
},
/**
* set the current selection
*/
setDate: function(date, preventOnSelect)
{
if (!date) {
this._d = null;
return this.draw();
}
if (typeof date === 'string') {
date = new Date(Date.parse(date));
}
if (!isDate(date)) {
return;
}
var min = this._o.minDate,
max = this._o.maxDate;
if (isDate(min) && date < min) {
date = min;
} else if (isDate(max) && date > max) {
date = max;
}
this._d = new Date(date.getTime());
setToStartOfDay(this._d);
this.gotoDate(this._d);
if (this._o.field) {
this._o.field.value = this.toString();
fireEvent(this._o.field, 'change', { firedBy: this });
}
if (!preventOnSelect && typeof this._o.onSelect === 'function') {
this._o.onSelect.call(this, this.getDate());
}
},
/**
* change view to a specific date
*/
gotoDate: function(date)
{
if (!isDate(date)) {
return;
}
this._y = date.getFullYear();
this._m = date.getMonth();
this.draw();
},
gotoToday: function()
{
this.gotoDate(new Date());
},
/**
* change view to a specific month (zero-index, e.g. 0: January)
*/
gotoMonth: function(month)
{
if (!isNaN((month = parseInt(month, 10)))) {
this._m = month < 0 ? 0 : month > 11 ? 11 : month;
this.draw();
}
},
nextMonth: function()
{
if (++this._m > 11) {
this._m = 0;
this._y++;
}
this.draw();
},
prevMonth: function()
{
if (--this._m < 0) {
this._m = 11;
this._y--;
}
this.draw();
},
/**
* change view to a specific full year (e.g. "2012")
*/
gotoYear: function(year)
{
if (!isNaN(year)) {
this._y = parseInt(year, 10);
this.draw();
}
},
/**
* refresh the HTML
*/
draw: function(force)
{
if (!this._v && !force) {
return;
}
var opts = this._o,
minYear = opts.minYear,
maxYear = opts.maxYear,
minMonth = opts.minMonth,
maxMonth = opts.maxMonth;
if (this._y <= minYear) {
this._y = minYear;
if (!isNaN(minMonth) && this._m < minMonth) {
this._m = minMonth;
}
}
if (this._y >= maxYear) {
this._y = maxYear;
if (!isNaN(maxMonth) && this._m > maxMonth) {
this._m = maxMonth;
}
}
this.el.innerHTML = renderTitle(this) + this.render(this._y, this._m);
if (opts.bound) {
var pEl = opts.field,
left = pEl.offsetLeft,
top = pEl.offsetTop + pEl.offsetHeight;
while((pEl = pEl.offsetParent)) {
left += pEl.offsetLeft;
top += pEl.offsetTop;
}
this.el.style.cssText = 'position:absolute;left:' + left + 'px;top:' + top + 'px;';
sto(function() {
opts.field.focus();
}, 1);
}
if (typeof this._o.onDraw === 'function') {
var self = this;
sto(function() {
self._o.onDraw.call(self);
}, 0);
}
},
/**
* render HTML for a particular month
*/
render: function(year, month)
{
var opts = this._o,
now = new Date(),
days = getDaysInMonth(year, month),
before = new Date(year, month, 1).getDay(),
data = [],
row = [];
setToStartOfDay(now);
if (opts.firstDay > 0) {
before -= opts.firstDay;
if (before < 0) {
before += 7;
}
}
var cells = days + before,
after = cells;
while(after > 7) {
after -= 7;
}
cells += 7 - after;
for (var i = 0, r = 0; i < cells; i++)
{
var day = new Date(year, month, 1 + (i - before)),
isDisabled = (opts.minDate && day < opts.minDate) || (opts.maxDate && day > opts.maxDate),
isSelected = isDate(this._d) ? compareDates(day, this._d) : false,
isToday = compareDates(day, now),
isEmpty = i < before || i >= (days + before);
row.push(renderDay(1 + (i - before), isSelected, isToday, isDisabled, isEmpty));
if (++r === 7) {
data.push(renderRow(row, opts.isRTL));
row = [];
r = 0;
}
}
return renderTable(opts, data);
},
isVisible: function()
{
return this._v;
},
show: function()
{
if (!this._v) {
if (this._o.bound) {
addEvent(document, 'click', this._onClick);
}
removeClass(this.el, 'is-hidden');
this._v = true;
this.draw();
if (typeof this._o.onOpen === 'function') {
this._o.onOpen.call(this);
}
}
},
hide: function()
{
var v = this._v;
if (v !== false) {
if (this._o.bound) {
removeEvent(document, 'click', this._onClick);
}
this.el.style.cssText = '';
addClass(this.el, 'is-hidden');
this._v = false;
if (v !== undefined && typeof this._o.onClose === 'function') {
this._o.onClose.call(this);
}
}
},
/**
* GAME OVER
*/
destroy: function()
{
this.hide();
removeEvent(this.el, 'mousedown', this._onMouseDown, true);
removeEvent(this.el, 'change', this._onChange);
if (this._o.field) {
removeEvent(this._o.field, 'change', this._onInputChange);
if (this._o.bound) {
removeEvent(this._o.field, 'click', this._onInputClick);
removeEvent(this._o.field, 'focus', this._onInputFocus);
removeEvent(this._o.field, 'blur', this._onInputBlur);
}
}
if (this.el.parentNode) {
this.el.parentNode.removeChild(this.el);
}
}
};
})(window, window.document);
謝謝，但我已經嘗試過，但它不是爲我工作:(任何其他方式嗎？ – JoJo 2013-03-27 10:42:25
你pikaday.js之前加載moment.js？ – aguynamedloren 2013-03-27 10:43:18
喔很大，現在它的工作我只是把moment.js pikaday.js前謝謝soooooooooo :) – JoJo 2013-03-27 10:58:26