wrapper around getElementText() method to generate safe scraping code

Usage

get_element(using, value, name = NULL, multiple = FALSE, prev = NULL)

Arguments

using: character string specifying locator scheme to use to search elements. Available schemes: "class name", "css selector", "id", "name", "link text", "partial link text", "tag name", "xpath".
value: character string specifying the search target.
name: character string specifying the object name the RSelenium "wElement" class object should be saved to. If NULL a name will be generated automatically.
multiple: logical indicating whether multiple elements should be returned. If TRUE the findElements() method will be invoked.
prev: a placeholder for the output of functions being piped into get_element(). Defaults to NULL and should not be altered.

Value

a character string defining 'RSelenium' getElementText() instructions that can be pasted into a scraping function.

Examples

if (FALSE) {

#navigate to wikipedia, type "Hello" into the search box,
#press enter, get page header

parsel::go("https://www.wikipedia.org/") %>>%
parsel::type(using = "id",
             value = "'searchInput'",
             name = "searchbox",
             text = c("Hello","\uE007")) %>>%
parsel::get_element(using = "id",
                    value = "'firstHeading'",
                    name = "header") %>>%
            show()

#navigate to wikipedia, type "Hello" into the search box, press enter,
#get page header, save in external data.frame x.

parsel::go("https://www.wikipedia.org/") %>>%
parsel::type(using = "id",
             value = "'searchInput'",
             name = "searchbox",
             text = c("Hello","\uE007")) %>>%
parsel::get_element(using = "id",
                    value = "'firstHeading'",
                    name = "x[,1]") %>>%
                    show()

}