Validate Expressions

Validates Perspective expression strings against the table without applying them. The result is delivered asynchronously to input$<outputId>_validate_expressions.

Usage

psp_validate_expressions(proxy, expressions)

Arguments

proxy

A perspectiveProxy object.

expressions

A non-empty character vector of expression strings.

Value

The proxy object (invisibly), for chaining.

Examples

if (interactive()) {
proxy <- perspectiveProxy(session, "viewer")
psp_validate_expressions(proxy, expressions = c("\"col1\" + \"col2\""))
}