Maps, Data, Viz, UX, Design
// this regex matches a single character from a set (the chars in the square brackets)
re = /^[%#.*-]$/
// we could also do it this way but its more verbose than a regex
matches = (char) => char.length === 1 && characters.includes(char)
characters = "#.%-*+"
matches("*")
matches(".")
matches("##")
matches("something.really.long")
re.test("*")
re.test("#")
re.test(".")
re.test("-")
re.test("should.not.match#this%right?")
re.test("*.")
re.test(".a")
re.test("*b*")
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
