如何在 Javascript 中对史前日期使用 Date？
我在做一个 JavaScript Date 不够大的项目。
我想把多个事件放在同一个时间轴上，有些有月和日，有些没有，所以仅仅使用 year 不是一个选项。我希望能够实现登月和大爆炸在同一轴上。
如果我能够使用现有 Date 对象所具有的功能，那么将会有很大的帮助。它只能追溯到270,000年前，我需要一直追溯到大爆炸(13,800,000,000年前)。我不需要日期包含秒或毫秒。
如何扩展 Date 对象以包含此类日期的表示形式？
我曾试图为此找到库或本机函数，但没有找到。我还开始寻找 Date 对象的 JavaScript 实现，我可以对其进行修改，但是在这里也没有找到。
更新:
我开始使用 Remdevtec 解决方案，但最终对它进行了大量修改。我希望日期按数字顺序排列，以便于对日期进行排序和排序。
所以我所做的是，如果年份在 -100,000之前，我将毫秒值视为小时。这是我到目前为止得到的，它在我们的项目工程，但如果我有更多的时间，我会清理它，并把它放在 github。
function BigDate(date){
if(!date){
this.original = new Date();
}else if(date instanceof BigDate){
this.original = date.original;
}else{
this.original = new Date(date);
}
this.yearBreakpoint = -100000;
this.breakPoint = Date.UTC(this.yearBreakpoint,0,0).valueOf();
this.factor = 360000;//needed for our project to make extra space on our axis
}
BigDate.UTC = function (year, month, day, hour, minute, second, millisecond) {
var temp = new BigDate();
if(year < -temp.yearBreakpoint){
temp.setUTCFullYear(year);
return temp;
}else{
temp.original = Date.UTC(year,month,day,hour,minute,second,millisecond);
}
return temp.valueOf();
};
BigDate.now = function (){
var temp = new BigDate();
temp.original = Date.now();
return temp.valueOf();
};
BigDate.parse = function (val){
throw "not implemnted";
};
//custom functions
BigDate.prototype.getUTCDate = function () {
if(this.valueOf() < this.breakPoint){
return 0;
}
return this.original.getUTCDate();
};
BigDate.prototype.getUTCDay = function () {
if(this.valueOf() < this.breakPoint){
return 0;
}
return this.original.getUTCDay();
};
BigDate.prototype.getUTCFullYear = function () {
if(this.valueOf() < this.breakPoint){
return (this.valueOf() - this.breakPoint) / this.factor;
}
return this.original.getUTCFullYear();
};
BigDate.prototype.getUTCHours = function () {
if(this.valueOf() < this.breakPoint){
return 0;
}
return this.original.getUTCHours();
};
BigDate.prototype.getUTCMilliseconds = function () {
if(this.valueOf() < this.breakPoint){
return 0;
}
return this.original.getUTCMilliseconds();
};
BigDate.prototype.getUTCMinutes = function () {
if(this.valueOf() < this.breakPoint){
return 0;
}
return this.original.getUTCMinutes();
};
BigDate.prototype.getUTCMonth = function () {
if(this.valueOf() < this.breakPoint){
return 0;
}
return this.original.getUTCMonth();
};
BigDate.prototype.getUTCSeconds = function () {
if(this.valueOf() < this.breakPoint){
return 0;
}
return this.original.getUTCSeconds();
};
BigDate.prototype.setUTCDate = function (val) {
if(val >= this.yearBreakpoint){
return this.original.setUTCDate(val);
}
};
BigDate.prototype.setUTCFullYear = function (val) {
if(val < this.yearBreakpoint){
this.original.setTime((parseInt(val) * this.factor) + this.breakPoint);
}else{
this.original.setUTCFullYear(val);
}
return this.valueOf();
};
BigDate.prototype.setUTCHours = function (val) {
if(val >= this.yearBreakpoint){
return this.original.setUTCHours(val);
}
};
BigDate.prototype.setUTCMilliseconds = function (val) {
if(val >= this.yearBreakpoint){
return this.original.setUTCMilliseconds(val);
}
};
BigDate.prototype.setUTCMinutes = function (val) {
if(val >= this.yearBreakpoint){
return this.original.setUTCMinutes(val);
}
};
BigDate.prototype.setUTCMonth = function (val) {
if(val >= this.yearBreakpoint){
return this.original.setUTCMonth(val);
}
};
BigDate.prototype.setUTCSeconds = function (val) {
if(val >= this.yearBreakpoint){
return this.original.setUTCSeconds(val);
}
};
BigDate.prototype.setTime = function (val) {
this.original.setTime(val);
return this.valueOf();
};
BigDate.prototype.valueOf = function () {
return this.original.valueOf();
};
BigDate.prototype.toDateString = function () {
if(this.valueOf() < this.breakPoint){
return "Jan 01 " + this.getUTCFullYear();
}
return this.original.toDateString();
};
BigDate.prototype.toISOString = function () {
if(this.valueOf() < this.breakPoint){
return this.getUTCFullYear() + "-01-01T00:00:00.000Z";
}
return this.original.toISOString();
};
BigDate.prototype.toJSON = function () {
throw "not implemnted";
};
BigDate.prototype.toLocaleDateString = function () {
throw "not implemnted";
};
BigDate.prototype.toLocaleTimeString = function () {
throw "not implemnted";
};
BigDate.prototype.toLocaleString = function () {
throw "not implemnted";
};
BigDate.prototype.toTimeString = function () {
throw "not implemnted";
};
BigDate.prototype.toUTCString = function () {
if(this.valueOf() < this.breakPoint){
return "01 Jan "+ this.getFullYear() +" 00:00:00 GMT";
}
return this.original.toUTCString();
};
/**
* Don't need no timezones
*/
BigDate.prototype.getDate = function () {
return this.getUTCDate();
};
BigDate.prototype.getDay = function () {
return this.getUTCDay();
};
BigDate.prototype.getFullYear = function () {
return this.getUTCFullYear();
};
BigDate.prototype.getHours = function () {
return this.getUTCHours();
};
BigDate.prototype.getMilliseconds = function() {
return this.getUTCMilliseconds();
};
BigDate.prototype.getMinutes = function() {
return this.getUTCMinutes();
};
BigDate.prototype.getMonth = function () {
return this.getUTCMonth();
};
BigDate.prototype.getSeconds = function () {
return this.getUTCSeconds();
};
BigDate.prototype.getTimezoneOffset = function () {
return 0;
};
BigDate.prototype.getTime = function () {
return this.valueOf();
};
BigDate.prototype.setDate = function (val) {
return this.setUTCDate(val);
};
BigDate.prototype.setFullYear = function (val) {
return this.setUTCFullYear(val);
};
BigDate.prototype.setHours = function (val) {
return this.setUTCHours(val);
};
BigDate.prototype.setMilliseconds = function (val) {
return this.setUTCMilliseconds(val);
};
BigDate.prototype.setMinutes = function (val) {
return this.setUTCMinutes(val);
};
BigDate.prototype.setMonth = function (val) {
return this.setUTCMonth(val);
};
BigDate.prototype.setSeconds = function (val) {
return this.setUTCSeconds(val);
};
BigDate.prototype.toString = function () {
return this.toUTCString();
};
最佳答案