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Posted By

Leech on 07/21/06


Tagged

class date format


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jkochis


Date Format v1.0

Published in: JavaScript 

URL: http://jsfromhell.com/geral/date-format

Formats a date according to a formatting string. Created: 2006.05.05

Plain TextExpand 
  1. /*
  2. **************************************
  3. * Date.format Function v1.0          *
  4. * Autor: Carlos R. L. Rodrigues      *
  5. **************************************
  6. */
  7. Date.prototype.format = function(m, r){
  8.     var d = this, a, fix = function(n, c){return (n = n + "").length < c ? new Array(++c - n.length).join("0") + n : n};
  9.     var r = r || {}, f = {j: function(){return d.getDate()}, w: function(){return d.getDay()},
  10.         y: function(){return (d.getFullYear() + "").slice(2)}, Y: function(){return d.getFullYear()},
  11.         n: function(){return d.getMonth() + 1}, m: function(){return fix(f.n(), 2)},
  12.         g: function(){return d.getHours() % 12 || 12}, G: function(){return d.getHours()},
  13.         H: function(){return fix(d.getHours(), 2)}, h: function(){return fix(f.g(), 2)},
  14.         d: function(){return fix(f.j(), 2)}, N: function(){return f.w() + 1},
  15.         i: function(){return fix(d.getMinutes(), 2)}, s: function(){return fix(d.getSeconds(), 2)},
  16.         ms: function(){return fix(d.getMilliseconds(), 3)}, a: function(){return d.getHours() > 11 ? "pm" : "am"},
  17.         A: function(){return f.a().toUpperCase()}, O: function(){return d.getTimezoneOffset() / 60},
  18.         z: function(){return (d - new Date(d.getFullYear() + "/1/1")) / 864e5 >> 0},
  19.         L: function(){var y = f.Y(); return (!(y & 3) && (y % 1e2 || !(y % 4e2))) ? 1 : 0},
  20.         t: function(){var n; return (n = d.getMonth() + 1) == 2 ? 28 + f.L() : n & 1 && n < 8 || !(n & 1) && n > 7 ? 31 : 30},
  21.         W: function(){
  22.             var a = f.z(), b = 364 + f.L() - a, nd = (new Date(d.getFullYear() + "/1/1").getDay() || 7) - 1;
  23.             return (b <= 2 && ((d.getDay() || 7) - 1) <= 2 - b) ? 1 :
  24.                 (a <= 2 && nd >= 4 && a >= (6 - nd)) ? new Date(d.getFullYear() - 1 + "/12/31").format("%W%") :
  25.                 (1 + (nd <= 3 ? ((a + nd) / 7) : (a - (7 - nd)) / 7) >> 0);
  26.         }
  27.     }
  28.     return m.replace(/%(.*?)%/g, function(t, s){
  29.         return r[s] ? r[s](d, function(s){return f[s] && f[s]();}) : f[s] ? f[s]() : "%" + (s && s + "%");
  30.     });
  31. }

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