javascript - Price closest to in array? -


i 3 arrays in javascript, values in array productid => price (xx:xx)

var instantpriser = {11: 48,12: 96,13: 144,14: 192,15: 240,16: 288,17: 336,18: 384,19: 432,20: 480,21: 528,22: 576,23: 624,24: 672,25: 720,26: 768,9999999999999999}; var maletpriser   = {27: 20,28: 40,29: 60,30: 80,31: 100,32: 120,33: 140,34: 160,35: 180,36: 200,37: 220,38: 240,39: 260,40: 280,41: 300,42: 320,43: 340,44: 360,45: 380,46: 400,47: 420,48: 440,49: 460,50: 480,51: 500,52: 520,53: 540,54: 560,55: 580,56: 600,57: 620,58: 640,59: 660,60: 680,61: 700,62: 720,63: 740,64: 760,65: 780,66: 800,67: 820,68: 840,69: 860,70: 880,71: 900,9999999999999999}; var heleboenner   = {72: 89,73: 178,74: 267,75: 356,76: 445,77: 534,78: 623,79: 712,80: 801,81: 890,82: 979,83: 1068,84: 1157,85: 1246,86: 1335,87: 1424,88: 1513,89: 1602,90: 1691,91: 1780,92: 1869,93: 1958,94: 2047,95: 2136,9999999999999999};

i trying see how can closest "productid" array price?

i've tried this, doesn't seem work out well:

 var price = 450;  ( i=0;i<instantpriser.length;i++ ){         if ( pris <= instantpriser[i]){             alert(instantpriser[i]);             return false;         }  }

it should output 19 or 20 because values 432 , 480 (closest 450)

how can this?

push values array find closest value using following code

  var closest  = null;    $.each(arr, function(index,value1){       if (closest == null || math.abs(value1 - value) < math.abs(closest - value)) {         closest = this.value;       }     });   alert(closest );

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