jquery - Uncaught ReferenceError: x is not defined, when trying to return object from function -


i'm trying create function positions of elements, when try bottom offset return not defined, missing?

this attempt:

var mydiv = jquery('.div');  function getoffset(el) {     var off = jquery(el).offset();     return {         left: off.left,         right: off.left + el.outerwidth(),         top: off.top,         bottom: off.top + el.outerheight(),         hcenter: (bottom + top) /2,         wcenter: (right + left) /2     }; }  var mydivposition = getoffset(mydiv);  console.log(         "top = " + mydivposition.top +         "bottom = " + mydivposition.bottom +         "hcenter = " + mydivposition.hcenter +         "left = " + mydivposition.left +         "right = " + mydivposition.right +         "wcenter = " + mydivposition.wcenter         );

i in console:

uncaught referenceerror: bottom not defined

you're trying use bottom , right variables haven't declared. note using unqualified bottom or right identifer doesn't in way retrieve them object you're building (in fact, there no reasonable way). them up-front (you need refer top , left on off):

function getoffset(el) {     var off = jquery(el).offset();     var bottom = off.top + el.outerheight();  // ***     var right = off.left + el.outerwidth();   // ***     return {         left: off.left,         right: right,                         // ***         top: off.top,         bottom: bottom,                       // ***         hcenter: (bottom - off.top) /2,       // ***         wcenter: (right - off.left) /2        // ***     }; }

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