Selecting a 'property value' from an array based on another 'property value' in javascript -


i have array this.

var nodes = [{id:"101", x:100, y:200}         ,{id:"102", x:200, y:200}         ,{id:"103", x:300, y:300}         ,{id:"104", x:200, y:300}];

i'd have function takes node's id input , return (x,y). example, function coordinates(103)should read array (nodes) , return x = 300, y = 300 when it's called. pointer appreciated. :) have far. works i'd know neater , tidier methods. 

function coordinates(id){     (var i=0 in nodes){         if(nodes[i].id == id){             return { x: nodes[i].x, y: nodes[i].y};         }     } } console.log(coordinates(102));

basically you're looking @ this

var f = function(id){     var match = nodes.filter(function(d){          return d.id === id;      })     return match && match.length && {x: match[0].x, y:match[0].y}      || {x: undefined, y: undefined}; };

then f('101') outputs {x: 100, y:200} , if cannot find match output {x: undefined, y: undefined}


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