Please find the below array JSON Object.
points:[{x:1, YValues:[34,45,56]}, {x:5, YValues:[20,12,30]}, {x:8, YValues:[12,13]}]
I want to find the maximum value of X
and find the maximum value of YValues
separately.
I don't expect for loop to find the maximum value. Expecting in simple way to find the maximum of X
as well as maximum of YValues
from points
JSON object.
Is it possible to use Math.max
or any custom function ?
Thanks, Siva
Something like this?
Math.max.apply(0,points.map(function(v){return v.x}));
Still a loop, but it's succinct.
Here's how to do it for YValues
. A long line though:
Math.max.apply(0,[].concat.apply([],arr.map(function(v){return v.YValues})));
I made soultion using javascript 1.8 Array reduce
method . Please note it works only in modern browsers
var max = yourObj.points.reduce( function ( a, b ){
a.x = Math.max.apply( 0, [a.x,b.x] ) ;
a.y = Math.max.apply( 0, [].concat( [ a.y ], b.YValues ) )
return a;
}, { x :0, y :0 } );
the max
variable contains maximum x and y
console.log( max.x );
console.log( max.y );
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