chore: merge Added Temperature Conversions to Javascript (TheAlgorithms#705)

* Added Temperature Conversions to Javascript

I added a file which contains essential conversions needed to swap temperature units to one another.
Hope you like it :)

* Update Conversions/TemperatureConversion.js

Suggestions saved

Co-authored-by: Rak Laptudirm <raklaptudirm@gmail.com>

* Added test file 

"test" folder was created and tests required for "TemperatureConversions" was added to it

* Fixed minor syntax errors

* Update Conversions/test/TemperatureConversion.test.js

Co-authored-by: Rak Laptudirm <raklaptudirm@gmail.com>

* Formatted TemperatureConversion.js 

The code was modified to comply with rules and styes recommended by the repository

* Formatted TemperatureConversion.test.js 

The code was modified to comply with rules and styes recommended by the repository

* Reformatted :) 

Hope this passes the test :)

Co-authored-by: Rak Laptudirm <raklaptudirm@gmail.com>

Author: SabariGanesh-K

Conversions/TemperatureConversion.js

@@ -0,0 +1,103 @@
+// This files has functions to convert different temperature units
+// Functions take temperature value as a arguement and returns corresponding converted value
+
+const celsiusToFahrenheit = (celsius) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Celsius
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Fahrenheit
+  return Math.round(((celsius) * 9 / 5) + 32)
+}
+
+const celsiusToKelvin = (celsius) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Celsius
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Kelvin
+  return Math.round((celsius) + 273.15)
+}
+
+const celsiusToRankine = (celsius) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Celsius
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Rankine_scale
+  return Math.round(((celsius) * 9 / 5) + 491.67)
+}
+
+const fahrenheitToCelsius = (fahrenheit) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Fahrenheit
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Celsius
+  return Math.round(((fahrenheit) - 32) * 5 / 9)
+}
+
+const fahrenheitToKelvin = (fahrenheit) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Fahrenheit
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Kelvin
+  return Math.round((((fahrenheit) - 32) * 5 / 9) + 273.15)
+}
+
+const fahrenheitToRankine = (fahrenheit) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Fahrenheit
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Rankine_scale
+  return Math.round((fahrenheit) + 459.67)
+}
+
+const kelvinToCelsius = (kelvin) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Kelvin
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Celsius
+  return Math.round((kelvin) - 273.15)
+
+}
+
+const kelvinToFahrenheit = (kelvin) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Kelvin
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Fahrenheit
+  return Math.round((((kelvin) - 273.15) * 9 / 5) + 32)
+}
+
+const kelvinToRankine = (kelvin) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Kelvin
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Rankine_scale
+  return Math.round(( (kelvin) * 9 / 5))
+}
+
+const rankineToCelsius = (rankine) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Rankine_scale
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Celsius
+  return Math.round(((rankine) - 491.67) * 5 / 9)
+}
+
+const rankineToFahrenheit = (rankine) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Rankine_scale
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Fahrenheit
+  return Math.round((rankine) - 459.67)
+}
+
+const rankineToKelvin = (rankine) => {
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Rankine_scale
+  // Wikipedia reference: https://en.wikipedia.org/wiki/Kelvin
+  return Math.round(((rankine) * 5 / 9))
+}
+
+const reaumurToKelvin = (reaumur) => {
+  // Reference:- http://www.csgnetwork.com/temp2conv.html
+  return Math.round(((reaumur) * 1.25 + 273.15))
+}
+
+const reaumurToFahrenheit = (reaumur) => {
+  // Reference:- http://www.csgnetwork.com/temp2conv.html
+  return Math.round(((reaumur) * 2.25 + 32))
+}
+
+const reaumurToCelsius = (reaumur) => {
+  // Reference:- http://www.csgnetwork.com/temp2conv.html
+  return Math.round(((reaumur) * 1.25))
+}
+
+const reaumurToRankine = (reaumur) => {
+  // Reference:- http://www.csgnetwork.com/temp2conv.html
+  return Math.round(((reaumur) * 2.25 + 32 + 459.67))
+}
+
+export {
+  celsiusToFahrenheit, celsiusToKelvin, celsiusToRankine,
+  fahrenheitToCelsius, fahrenheitToKelvin, fahrenheitToRankine,
+  kelvinToCelsius, kelvinToFahrenheit, kelvinToRankine,
+  rankineToCelsius, rankineToFahrenheit, rankineToKelvin,
+  reaumurToCelsius, reaumurToFahrenheit, reaumurToKelvin, reaumurToRankine
+}

Conversions/test/TemperatureConversion.test.js

@@ -0,0 +1,106 @@
+import * as tc from '../TemperatureConversion.js'
+
+describe('Testing Conversion of Celsius to fahrenheit', () => {
+  it('with celsius value', () => {
+    const test1 = tc.celsiusToFahrenheit(10)
+    expect(test1).toBe(50)
+  })
+})
+
+describe('Testing Conversion of Celsius to kelvin', () => {
+  it('with celsius value', () => {
+    const test1 = tc.celsiusToKelvin(15)
+    expect(test1).toBe(288)
+  })
+})
+
+describe('Testing Conversion of Celsius to Rankine', () => {
+  it('with celsius value', () => {
+    const test1 = tc.celsiusToRankine(28)
+    expect(test1).toBe(542)
+  })
+})
+
+describe('Testing Conversion of Fahrenheit to Celsius', () => {
+  it('with Fahrenheit value', () => {
+    const test1 = tc.fahrenheitToCelsius(134)
+    expect(test1).toBe(57)
+  })
+})
+
+describe('Testing Conversion of Fahrenheit to Kelvin', () => {
+  it('with Fahrenheit value', () => {
+    const test1 = tc.fahrenheitToKelvin(125)
+    expect(test1).toBe(325)
+  })
+})
+
+describe('Testing Conversion of Fahrenheit to Rankine', () => {
+  it('with Fahrenheit value', () => {
+    const test1 = tc.fahrenheitToRankine(10)
+    expect(test1).toBe(470)
+  })
+})
+
+describe('Testing Conversion of Kelvin to Celsius', () => {
+  it('with Kelvin value', () => {
+    const test1 = tc.kelvinToCelsius(100)
+    expect(test1).toBe(-173)
+  })
+})
+
+describe('Testing Conversion of Kelvin to Fahrenheit', () => {
+  it('with Kelvin value', () => {
+    const test1 = tc.kelvinToFahrenheit(20)
+    expect(test1).toBe(-424)
+  })
+})
+
+describe('Testing Conversion of Kelvin to Rankine', () => {
+  it('with kelvin value', () => {
+    const test1 = tc.kelvinToRankine(69)
+    expect(test1).toBe(124)
+  })
+})
+describe('Testing Conversion of Rankine to Celsius', () => {
+  it('with Rankine value', () => {
+    const test1 = tc.rankineToCelsius(234)
+    expect(test1).toBe(-143)
+  })
+})
+describe('Testing Conversion of Rankine to Fahrenheit', () => {
+  it('with Rankine value', () => {
+    const test1 = tc.rankineToFahrenheit(98)
+    expect(test1).toBe(-362)
+  })
+})
+describe('Testing Conversion of Rankine to Kelvin', () => {
+  it('with Rankine value', () => {
+    const test1 = tc.rankineToKelvin(10)
+    expect(test1).toBe(6)
+  })
+})
+describe('Testing Conversion of Reamur to Celsius', () => {
+  it('with Reamur value', () => {
+    const test1 = tc.reaumurToCelsius(100)
+    expect(test1).toBe(125)
+  })
+})
+describe('Testing Conversion of Reamur to Fahrenheit', () => {
+  it('with Reamur value', () => {
+    const test1 = tc.reaumurToFahrenheit(100)
+    expect(test1).toBe(257)
+  })
+})
+describe('Testing Conversion of Reamur to Kelvin', () => {
+  it('with Reamur value', () => {
+    const test1 = tc.reaumurToKelvin(100)
+    expect(test1).toBe(398)
+  })
+})
+describe('Testing Conversion of Reamur to Rankine', () => {
+  it('with Reamur value', () => {
+    const test1 = tc.reaumurToRankine(100)
+    expect(test1).toBe(717)
+  })
+})