Programming Fundamentals/Variables/JavaScript
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variables.js
[edit | edit source]// This program converts a Fahrenheit temperature to Celsius.
//
// References:
// https://www.mathsisfun.com/temperature-conversion.html
// https://en.wikibooks.org/wiki/JavaScript
var fahrenheit = input("Enter Fahrenheit temperature:");
var celsius = (fahrenheit - 32) * 5 / 9;
output(fahrenheit + "° Fahrenheit is " + celsius + "° Celsius");
function input(text) {
if (typeof window === 'object') {
return prompt(text)
}
else if (typeof console === 'object') {
const rls = require('readline-sync');
var value = rls.question(text);
return value;
}
else {
output(text);
var isr = new java.io.InputStreamReader(java.lang.System.in);
var br = new java.io.BufferedReader(isr);
var line = br.readLine();
return line.trim();
}
}
function output(text) {
if (typeof document === 'object') {
document.write(text);
}
else if (typeof console === 'object') {
console.log(text);
}
else {
print(text);
}
}
Try It
[edit | edit source]Copy and paste the code above into one of the following free online development environments or use your own JavaScript compiler / interpreter / IDE.
- Chapman.edu: Online JavaScript Interpreter
- CodeChef
- GDB Online
- Ideone
- JS.do
- paiza.IO
- PythonTutor
- repl.it