Cannot read properties of undefined (reading 'substring')

Njoroge Brian answered on June 9, 2022 Popularity 9/10 Helpfulness 2/10

answer Cannot read properties of undefined (reading 'substring')

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Cannot read properties of undefined (reading 'substring')

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Use optional chaining to check whether string to be truncated is availbale. (?)                                                                            
        let res = {movie.release_date?.substring(0, 4)};  
//if release date was 2022-6-9 the result will be 2022

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: stackoverflow.com

Tags: javascript properties undefined

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Contributed on Jun 09 2022

Njoroge Brian

0 Answers Avg Quality 2/10

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react Cannot read properties of undefined (reading 'substring')

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let res = this.props.details?.substring(100, 0);

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

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Contributed on Jul 05 2022

Web Techee

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Cannot read properties of undefined (reading 'substring')

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Cannot read properties of undefined (reading 'substring')

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react Cannot read properties of undefined (reading 'substring')

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