ee.String.index

    • Searches a string for the first occurrence of a substring.

    • Returns the index of the first match or -1 if not found.

    • The search is case-sensitive.

     Searches a string for the first occurrence of a substring. Returns the index of the first match, or -1.
    Usage Returns
    String. index (pattern) Integer
    Argument Type Details
    this: target
    		String The string to search.
    pattern
    		String The string to find.

    Examples

    Code Editor (JavaScript) 

     print 
 ( 
 ee 
 . 
 String 
 ( 
 'abc123' 
 ). 
 index 
 ( 
 '' 
 )); 
  
 // 0 
 print 
 ( 
 ee 
 . 
 String 
 ( 
 'abc123' 
 ). 
 index 
 ( 
 'c1' 
 )); 
  
 // 2 
 print 
 ( 
 ee 
 . 
 String 
 ( 
 'abc123' 
 ). 
 index 
 ( 
 'ZZ' 
 )); 
  
 // -1 
 // index is case-sensitive. 
 print 
 ( 
 ee 
 . 
 String 
 ( 
 'abc123' 
 ). 
 index 
 ( 
 'BC' 
 )); 
  
 // -1

    Python setup

    See the Python Environment page for information on the Python API and using geemap for interactive development.

     import 
  
 ee 
 import 
  
 geemap.core 
  
 as 
  
 geemap

    Colab (Python) 

     display 
 ( 
 ee 
 . 
 String 
 ( 
 'abc123' 
 ) 
 . 
 index 
 ( 
 '' 
 )) 
 # 0 
 display 
 ( 
 ee 
 . 
 String 
 ( 
 'abc123' 
 ) 
 . 
 index 
 ( 
 'c1' 
 )) 
 # 2 
 display 
 ( 
 ee 
 . 
 String 
 ( 
 'abc123' 
 ) 
 . 
 index 
 ( 
 'ZZ' 
 )) 
 # -1 
 # index is case-sensitive. 
 display 
 ( 
 ee 
 . 
 String 
 ( 
 'abc123' 
 ) 
 . 
 index 
 ( 
 'BC' 
 )) 
 # -1
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