Copy as Markdown View as Markdown (opens in new tab) View on GitHub (opens in new tab) Open in... ChatGPT (opens in new tab) Claude (opens in new tab) Perplexity (opens in new tab) upper upper(text: String): String Returns the provided string in uppercase characters. Parameters Name Description text The string to convert to uppercase. Example This example converts lowercase characters to uppercase. Source %dw 2.0 output application/json --- { "name" : upper("mulesoft") } Output { "name": "MULESOFT" } upper(value: Null): Null Helper function that enables upper to work with a null value.