Uncaught typeerror: cannot read property 'value' of null

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I want to get the value selected in the filter select in dojo. But when I try to fetch the value I get the below error.
Uncaught TypeError: Cannot read property 'value' of null

What I have tried:

This is my filter select :
var filteringSelect = new FilteringSelect({
id: "stateSelect",
name: "state",
value: "CA",
store: stateStore,
searchAttr: "name",
}, "stateSelect");
filteringSelect.placeAt(win.body()).startup();

And I want to print the value selected in filter select :
var optVal = dijit.byId("stateSelect").item.value;
console.log(optVal);
What should I do?

Posted 12-Nov-17 6:11am

SpChandr

Updated 12-Nov-17 6:26am

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Karthik_Mahalingam · Accepted Answer · 2017-11-12T06:26:00

Quote:
Uncaught typeerror: cannot read property 'value' of null

This is a very common error which occurs, when trying to access the member of an object which is null.
Fix: Validate for null value before accessing the members, but you will have to check why it is null at the first place, make sure the DOM contains the element with the id stateSelect

var optVal = dijit.byId("stateSelect");
if( optVal != null && optVal.item != null ) // validate for null  
console.log(optVal.item.value);