WOLFRAM

Wolfram Language™

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Find the Population of a Country

Create a web form to find the population of a country.

code

CloudDeploy[ FormFunction[{{"x", "Find the population of this country:"} -> "ComputedCountry"}, CountryData[#x, "Population"] &], Permissions -> "Public"]

how it works

This example was live-coded at the Wolfram Research booth at SXSW, March 9, 2014.

This gives the population of the United States:

CountryData["UnitedStates", "Population"]

The country known to the Wolfram Language as “UnitedStates” is known by many other names. An Interpreter object will translate from natural language names to the Wolfram Language name:

Interpreter["ComputedCountry"] /@ {"US", "usa", "u.s.a.", "America"}

With those two functionalities, you can make a web form that gives the population of a country you specify. The “ComputedCountry” Interpreter is used automatically to determine the country from what is entered in the form. Specify Permissions->”Public” to make the form accessible to everyone:

CloudDeploy[ FormFunction[{{"x", "Find the population of this country:"} -> "ComputedCountry"}, CountryData[#x, "Population"] &], Permissions -> "Public"]