strings.toUpper() function

The strings.toUpper() function converts a string to uppercase.

*Output data type: String*

import "strings"
strings.toUpper(v: "koala")
// returns "KOALA"

Parameters

v

The string value to convert.

*Data type: String*

Examples

Convert all values of a column to upper case

import "strings"
data
  |> map(fn: (r) => ({ r with envVars: strings.toUpper(v: r.envVars) }))

The difference between toTitle and toUpper

The results of toUpper() and toTitle are often the same, however the difference is visible when using special characters:

str = "dz"
strings.toUpper(v: str) // Returns DZ
strings.toTitle(v: str) // Returns Dz

Related articles

• strings.toTitle() function
• strings.toLower() function
• strings.title() function