r.js(js_string[, :timeout => <number>]) → value
Create a javascript expression.
timeout is the number of seconds before r.js times out. The default value is 5 seconds.
Whenever possible, you should use native ReQL commands rather than
r.jsfor better performance.
Example: Concatenate two strings using JavaScript.
r.js("'str1' + 'str2'").run(conn)
Example: Select all documents where the ‘magazines’ field is greater than 5 by running JavaScript on the server.
r.table('marvel').filter(
r.js('(function (row) { return row.magazines.length > 5; })')).run(conn)
Example: You may also specify a timeout in seconds (defaults to 5).
r.js('while(true) {}', :timeout => 1.3).run(conn)
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