Difference between revisions of "IndexOf Command"
From GeoGebra Manual
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{{command|list}} | {{command|list}} | ||
;IndexOf[ <Object>, <List> ] | ;IndexOf[ <Object>, <List> ] | ||
| − | :Returns position of first occurrence of Object in List, e.g. <code>IndexOf[5,{1,3,5,2,5,4}]</code> returns 3. When the object is not found, result is undefined. | + | :Returns position of first occurrence of Object in List, e.g. <code>IndexOf[5,{1,3,5,2,5,4}]</code> returns 3. When the object is not found, result is ''undefined''. |
;IndexOf[ <Object>, <List>, <Start Index> ] | ;IndexOf[ <Object>, <List>, <Start Index> ] | ||
:Same as above, but the search starts at given index. | :Same as above, but the search starts at given index. | ||
Revision as of 12:07, 18 June 2011
- IndexOf[ <Object>, <List> ]
- Returns position of first occurrence of Object in List, e.g.
IndexOf[5,{1,3,5,2,5,4}]returns 3. When the object is not found, result is undefined. - IndexOf[ <Object>, <List>, <Start Index> ]
- Same as above, but the search starts at given index.
Example:
IndexOf[5,{1,3,5,2,5,4},3]returns 3.IndexOf[5,{1,3,5,2,5,4},4]returns 5.IndexOf[5,{1,3,5,2,5,4},6]returns undefined.
- IndexOf[ <Text Needle>, <Text Haystack>]
- Returns position of first occurrence of Needle in Haystack, e.g.
IndexOf["Ge","GeoGebra"]returns 1. - IndexOf[ <Text Needle>, <Text Haystack>, <Start Index> ]
- Same as above, but the search starts at given index.
Example:
IndexOf["Ge","GeoGebra",2] returns 4.
