length

Description

Returns the number of characters in a string.

Syntax

Like many functions in DataPrime, length supports two notations, function and method. These interchangeable forms allow flexibility in how you structure expressions.

Function notation

length(value: string): number

Method notation

(value: string).length(): number

Arguments

Name	Type	Required	Description
value	string	true	The string to measure

Example

Count the number of characters in a string

Consider the following document:

{
    "str_val": "such logs, much tracing, wow!"
}

Use length to count the number of characters:

Example query

Function notation

create str_val_len from length(str_val)

Method notation

create str_val_len from str_val.length()

Example output

{
    "str_val": "such logs, much tracing, wow!",
    "str_val_len": 29
}