jquery - Difference between .position() and .offset() and an interesting Observation? -


question: difference between .offset() , .position()?

i read docs on still not @ clear real difference between these two. request simple explanation on same.

my observation:

i wrote javascript code placed in web page(.aspx) itself. javascript setting position of modal popup. in code used .position() position of div placing modal popup. now, here twist- when moved javascript code seperate js file, .position() not @ working instead used .offset() , working fine.

i request explaination on ?

that depends on context element in. position returns position relative offset parent, , offset same relative document. obviously, if document offset parent, case, these identical.

if have layout this, however:

 <div style="position: absolute; top: 200; left: 200;">      <div id="sub"></div>  </div>

then offset sub 200:200, position 0:0.

hope makes sense.


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