我想转换时间的持续时间,即秒数,以冒号分隔的时间字符串(hh:mm:ss)
我在这里找到了一些有用的答案,但它们都谈到了转换成x小时和x分钟的格式。
那么有一个小片段,这是在jQuery或只是原始JavaScript?
我想转换时间的持续时间,即秒数,以冒号分隔的时间字符串(hh:mm:ss)
我在这里找到了一些有用的答案,但它们都谈到了转换成x小时和x分钟的格式。
那么有一个小片段,这是在jQuery或只是原始JavaScript?
当前回答
我不喜欢在JavaScript中为标准数据类型添加属性,所以我建议这样做:
/**
* Format a duration in seconds to a human readable format using the notion
* "h+:mm:ss", e.g. "4:40:78". Negative durations are preceeded by "-".
*
* @param t Duration in seconds
* @return The formatted duration string
*/
var readableDuration = (function() {
// Each unit is an object with a suffix s and divisor d
var units = [
{s: '', d: 1}, // Seconds
{s: ':', d: 60}, // Minutes
{s: ':', d: 60}, // Hours
];
// Closure function
return function(t) {
t = parseInt(t); // In order to use modulus
var trunc, n = Math.abs(t), i, out = []; // out: list of strings to concat
for (i = 0; i < units.length; i++) {
n = Math.floor(n / units[i].d); // Total number of this unit
// Truncate e.g. 26h to 2h using modulus with next unit divisor
if (i+1 < units.length) // Tweak substr with two digits
trunc = ('00'+ n % units[i+1].d).substr(-2, 2); // …if not final unit
else
trunc = n;
out.unshift(''+ trunc + units[i].s); // Output
}
(t < 0) ? out.unshift('-') : null; // Handle negative durations
return out.join('');
};
})();
用法:
var str = readableDuration(3808); // "1:03:28"
我还创建了一个更通用的版本。主要的区别是它接受毫秒(这是JS中的标准时间单位),而输出格式使用空格。
其他回答
我个人更喜欢不带前导零的开头单位(天、小时、分钟)。但是秒应该总是以分钟(0:13)开头,这种表示很容易被认为是“持续时间”,不需要进一步解释(标记为min, sec(s)等),可用于各种语言(国际化)。
// returns (-)d.h:mm:ss(.f)
// (-)h:mm:ss(.f)
// (-)m:ss(.f)
function formatSeconds (value, fracDigits) {
var isNegative = false;
if (isNaN(value)) {
return value;
} else if (value < 0) {
isNegative = true;
value = Math.abs(value);
}
var days = Math.floor(value / 86400);
value %= 86400;
var hours = Math.floor(value / 3600);
value %= 3600;
var minutes = Math.floor(value / 60);
var seconds = (value % 60).toFixed(fracDigits || 0);
if (seconds < 10) {
seconds = '0' + seconds;
}
var res = hours ? (hours + ':' + ('0' + minutes).slice(-2) + ':' + seconds) : (minutes + ':' + seconds);
if (days) {
res = days + '.' + res;
}
return (isNegative ? ('-' + res) : res);
}
//模仿服务器端(.net, c#)持续时间格式:
public static string Format(this TimeSpan interval)
{
string pattern;
if (interval.Days > 0) pattern = @"d\.h\:mm\:ss";
else if (interval.Hours > 0) pattern = @"h\:mm\:ss";
else pattern = @"m\:ss";
return string.Format("{0}", interval.ToString(pattern));
}
我喜欢Powtac的答案,但我想在angular.js中使用它,所以我用他的代码创建了一个过滤器。
.filter('HHMMSS', ['$filter', function ($filter) {
return function (input, decimals) {
var sec_num = parseInt(input, 10),
decimal = parseFloat(input) - sec_num,
hours = Math.floor(sec_num / 3600),
minutes = Math.floor((sec_num - (hours * 3600)) / 60),
seconds = sec_num - (hours * 3600) - (minutes * 60);
if (hours < 10) {hours = "0"+hours;}
if (minutes < 10) {minutes = "0"+minutes;}
if (seconds < 10) {seconds = "0"+seconds;}
var time = hours+':'+minutes+':'+seconds;
if (decimals > 0) {
time += '.' + $filter('number')(decimal, decimals).substr(2);
}
return time;
};
}])
它在功能上是相同的,除了我添加了一个可选的小数字段来显示小数秒。像使用其他过滤器一样使用它:
{{elapsedTime | HHMMSS}}显示:01:23:45
{{elapsedTime | HHMMSS: 3}}显示:01:23:45.678
我是这么做的
function timeFromSecs(seconds)
{
return(
Math.floor(seconds/86400)+'d :'+
Math.floor(((seconds/86400)%1)*24)+'h : '+
Math.floor(((seconds/3600)%1)*60)+'m : '+
Math.round(((seconds/60)%1)*60)+'s');
}
timeFromSecs(22341938)将返回“258d 14h 5m 38s”
在谷歌上搜索的结果是这样的:
function secondsToTime(secs)
{
secs = Math.round(secs);
var hours = Math.floor(secs / (60 * 60));
var divisor_for_minutes = secs % (60 * 60);
var minutes = Math.floor(divisor_for_minutes / 60);
var divisor_for_seconds = divisor_for_minutes % 60;
var seconds = Math.ceil(divisor_for_seconds);
var obj = {
"h": hours,
"m": minutes,
"s": seconds
};
return obj;
}
function secondsToTime(secs)
{
var hours = Math.floor(secs / (60 * 60));
var divisor_for_minutes = secs % (60 * 60);
var minutes = Math.floor(divisor_for_minutes / 60);
var divisor_for_seconds = divisor_for_minutes % 60;
var seconds = Math.ceil(divisor_for_seconds);
if(hours >= 12)
{
var m= 'pm' ;
}
else
{
var m='am'
}
if(hours-12 >0)
{
var hrs = hours-12;
}
else if(hours-12 <0)
{
var hrs = hours;
}
var obj = {
"h": hrs,
"m": minutes,
"s": seconds,
"a":m
};
return obj;
}
var d = new Date();
var n = d.getHours();
var hms = d.getHours()+':'+d.getMinutes()+':'+d.getSeconds(); // your input string
var a = hms.split(':'); // split it at the colons
// minutes are worth 60 seconds. Hours are worth 60 minutes.
var seconds = (+a[0]) * 60 * 60 + (+a[1]) * 60 + (+a[2]);
console.log(seconds);
console.log(secondsToTime(seconds))
https://jsfiddle.net/jithinksoft/9x6z4sdt/