Existence checking or existence detection is an important aspect of many computer programs. An existence check before reading a file can catch and/or prevent a fatal error, for instance. For that reason, most programming language libraries contain a means of checking whether a file exists. An existence check can sometimes involve a "brute force" approach of checking all records for a given identifier, as in this Microsoft Excel Visual Basic for Applications code for detecting whether a worksheet exists:
Property | Value |
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dbo:abstract |
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dbo:wikiPageID |
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dbo:wikiPageLength |
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dbo:wikiPageRevisionID |
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dbo:wikiPageWikiLink | |
dbp:wikiPageUsesTemplate | |
dcterms:subject | |
gold:hypernym | |
rdf:type | |
rdfs:comment |
|
rdfs:label |
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owl:sameAs | |
prov:wasDerivedFrom | |
foaf:isPrimaryTopicOf | |
is dbo:wikiPageRedirects of | |
is dbo:wikiPageWikiLink of | |
is foaf:primaryTopic of |