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referenceerror - How can I compare a non-existing JavaScript object to undefined without getting a Reference Error?

I want to boolean to come out of this expression (task === undefined); where task is arbitrary and doesn ... i-compare-a-non-existing-javascript-object-to-undefined-without-getting...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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150 views

1 answer

referenceerror - How can I compare a non-existing JavaScript object to undefined without getting a Reference Error?

I want to boolean to come out of this expression (task === undefined); where task is arbitrary and doesn ... i-compare-a-non-existing-javascript-object-to-undefined-without-getting...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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