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First

Syntax

First(L:LIST):OBJECT
First(L:LIST,N:INT):OBJECT
    

Summary

the first N elements of a list

Description

In the first form, the function is the same as the function Head; it returns the first element of the list L. In the second form, it returns the list of the first N elements of L.

example

    
L := [1,2,3,4,5];
First(L);
1
-------------------------------
First(L,3);
[1, 2, 3]
-------------------------------
        
    

See Also