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javascript arrays up and down
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//--------removing item from array existingArray.splice( znum, 1); //znum is the spot to remove 0-(length-1) //1 could be more if you want to remove more //--------sort array by keys //xOrderList[0] = { "name" : "Fred" , "ranktype" : "45" }; //xOrderList[1] = { "name" : "Jed" , "ranktype" : "35" }; //xOrderList[2] = { "name" : "Red" , "ranktype" : "55" }; xOrderList.sort(function(a,b) { return parseFloat(b.ranktype) - parseFloat(a.ranktype) } ); //highest to lowest xOrderList.sort(function(a,b) { return parseFloat(a.ranktype) - parseFloat(b.ranktype) } ); //lowest to hights by ranktype //--------duplicate an array var xNewArray = existingArray.slice(); //note that if the array contains arrays or objects, this will not work as they are just pointers to those items //--------duplicate an array of arrays function duplicateArray( xArray ) { var xTempArray = []; console.debug( xArray.length ); for (var x=0; x<xArray.length; x++){ xTempArray.push( xArray[x].slice() ); } return xTempArray; } var xNewArray = duplicateArray( existingArray );