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React.js MCQs

While using React, keys help in the identification of which of the following options?
i) New added items.

ii) Removed items.

iii) Updated items.

iv) Total number of items.

Only options i) and iv).

Only options i). ii) and iv).

Only options i), ii) and iii).

All options i). ii), iii) and iv).

Answer

Correct Answer:

Only options i), ii) and iii).

Explanation:

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Analytics||google-analytics||Google App Engine||google-app-engine||Google Cloud Platform (GCP)||google-cloud-platform-gcp||Google Docs||google-docs||Google Glass Programming||google-glass-programming||Google Maps-API and development||google-maps-api-and-development||Google Search||google-search||Google Sheets||google-sheets||Google Slides||google-slides||Google Wave (Google Buzz)||knowledge-of-google-wave-skills-test||Google Web Toolkit||google-web-toolkit||Google Webmaster Central||google-webmaster-central||Google Website Optimizer (Google Optimize)||knowledge-of-google-website-optimizer-test||Grant Writing||grant-writing||Graphic Designer||graphic-designer||Green Living Certification||green-living-certification||GSM||gsm||Guest Relations Executive||guest-relations-executive-test||H.C.F and L.C.M||h-c-f-and-l-c-m||Hadoop||hadoop-skills-test||Hardware||hardware||Hardware & Networking||hardware-networking||HashMap||hashmap||Health and Medicine||health-and-medicine||Health Club 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React.js MCQs

While using React, keys help in the identification of which of the following options?i) New added items.ii) Removed items.iii) Updated items.iv) Total number of items.

While using React, keys help in the identification of which of the following options?
i) New added items.

ii) Removed items.

iii) Updated items.

iv) Total number of items.