# Gridster resize listener

**URL:** <https://discuss.elastic.co/t/gridster-resize-listener/73352>\
**Category:** Kibana\
**Created:** [January 31, 2017, 11:28am UTC](https://discuss.elastic.co/t/gridster-resize-listener/73352 "2017-01-31T11:28:59Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![tarun\_kumar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tarun_kumar/32/65948_2.png) [@tarun\_kumar](https://discuss.elastic.co/u/tarun_kumar)\
**Post date:** [January 31, 2017, 11:28am UTC](https://discuss.elastic.co/t/gridster-resize-listener/73352/1 "2017-01-31T11:28:59Z")

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Hello everyone,

I am looking for kibana visualization gridster resize event listener , is there some object that i could keep listening or watching for this?

Best Regards  
Tarun Kumar

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**Author:** ![thomasneirynck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/thomasneirynck/32/23313_2.png) [@thomasneirynck](https://discuss.elastic.co/u/thomasneirynck)\
**Post date:** [February 1, 2017, 7:43am UTC](https://discuss.elastic.co/t/gridster-resize-listener/73352/2 "2017-02-01T07:43:46Z")

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hi @tarun_kumar,

I assume you're developing a visualization plugin?

Most kibana visualizations use the resize checker ([https://github.com/elastic/kibana/blob/master/src/ui/public/vislib/lib/resize\_checker.js](https://github.com/elastic/kibana/blob/master/src/ui/public/vislib/lib/resize_checker.js)).

Note that that's an internal API which may change.

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<div class="post-metadata">

**Author:** ![tarun\_kumar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tarun_kumar/32/65948_2.png) [@tarun\_kumar](https://discuss.elastic.co/u/tarun_kumar)\
**Post date:** [February 1, 2017, 12:15pm UTC](https://discuss.elastic.co/t/gridster-resize-listener/73352/3 "2017-02-01T12:15:39Z")

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Thanks a lot @thomasneirynck.  
I am not able to use resize\_checker lib and it returns me a function as -

var ResizeChecker = Private(require('ui/vislib/lib/resize\_checker'));  
console.log(ResizeChecker) prints me a function which contains verious functions.  
I am bit new to javascripting , so how do invoke function like read() from this ResizeChecker instance?  
I tried  
console.log(ResizeChecker.prototype.read());  
which returns TypeError: Cannot read property '0' of undefined

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [March 1, 2017, 12:15pm UTC](https://discuss.elastic.co/t/gridster-resize-listener/73352/4 "2017-03-01T12:15:48Z")

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