Maintenance script: Initial automated import

2016-02-24T18:18:03Z

Initial automated import

New page

{{Template:TI-BASIC:Command
|picture=LENGTH.GIF
|summary=Returns the length of a string.
|syntax=length(''string'')
|location=This command can only be found in the catalog. Press:
# 2nd CATALOG to access the command catalog
# L to skip to commands starting with L
# scroll down to length( and select it
|compatibility=TI-83/84/+/SE
|size=2 bytes
}}

This command is used to determine the length of a string. Unlike the [[TI-BASIC:Dim|Dim(]] command for lists and matrices, it cannot be used to change this length, as there is no null character for strings (the null value is 0 for lists and matrices).

:length("HELLO
5

Keep in mind that the length is measured in the number of tokens, and not the number of letters in the string. For example, although the sin( command contains 4 characters ("s", "i", "n", and "("), it will only add 1 to the total length of a string it's in. The execution time for length( is directly proportional to the length of the string.

= Advanced Uses =

The code for looping over each character (technically, each token) of a string involves length(:

:For(N,1,length(Str1
...
use sub(Str1,N,1 for the Nth character
...
:End

= Related Commands =

* [[TI-BASIC:Expr|Expr(]]
* [[TI-BASIC:Instring|InString(]]
* [[TI-BASIC:Sub|Sub(]][[Category:TI-BASIC]]
[[Category:TIBD]]

TI-BASIC:Length - Revision history

Maintenance script: Initial automated import