4D v17.4
Length
- 4D Language Reference
-
- String
-
- Character Reference Symbols
- 4D Transformation Tags
- Change string
- Char
- Character code
- CONVERT FROM TEXT
- Convert to text
- Delete string
- Get localized string
- GET TEXT KEYWORDS
- Insert string
- Length
- Lowercase
- Match regex
- Num
- Position
- Replace string
- Split string
- String
- Substring
- Uppercase
- _o_Convert case
- _o_ISO to Mac
- _o_Mac to ISO
- _o_Mac to Win
- _o_Win to Mac
Length
| Length ( string ) -> Function result | ||||||||
| Parameter | Type | Description | ||||||
| string | String |
|
String for which to return length | |||||
| Function result | Longint |
|
Length of string | |||||
Length is used to find the length of aString. Length returns the number of characters that are in aString.
Note: In Unicode mode, when you want to check whether a string contains any characters, including ignorable characters, you must use the test If(Length(vtAnyText)=0) rather than If(vtAnyText=""). If the string contains for example Char(1), which is an ignorable character, Length(vtAnyText) does return 1 but vtAnyText="" returns True.
This example illustrates the use of Length. The results, described in the comments, are assigned to the variable vlResult.
vlResult:=Length("Topaz") ` vlResult gets 5
vlResult:=Length("Citizen") ` vlResult gets 7
Product: 4D
Theme: String
Number:
16
Created: < 4D v6
4D Language Reference ( 4D v17)
4D Language Reference ( 4D v17.1)
4D Language Reference ( 4D v17.2)
4D Language Reference ( 4D v17.3)
4D Language Reference ( 4D v17.4)
