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100 lines
2.7 KiB
JavaScript
100 lines
2.7 KiB
JavaScript
/*
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Calculate the area of various shapes
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Calculate the Surface Area of a Cube.
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Example: surfaceAreaCube(1) will return 6
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More about: https://en.wikipedia.org/wiki/Area#Surface_area
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*/
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const surfaceAreaCube = (sideLength) => {
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validateNumericParam(sideLength, 'sideLength')
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return (6.0 * sideLength ** 2.0)
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}
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/*
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Calculate the Surface Area of a Sphere.
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Wikipedia reference: https://en.wikipedia.org/wiki/Sphere
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return 4 * pi * r^2
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*/
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const surfaceAreaSphere = (radius) => {
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validateNumericParam(radius, 'radius')
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return (4.0 * Math.PI * radius ** 2.0)
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}
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/*
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Calculate the area of a rectangle
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Wikipedia reference: https://en.wikipedia.org/wiki/Area#Quadrilateral_area
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return width * length
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*/
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const areaRectangle = (length, width) => {
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validateNumericParam(length, 'Length')
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validateNumericParam(width, 'Width')
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return (width * length)
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}
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/*
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Calculate the area of a square
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*/
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const areaSquare = (sideLength) => {
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validateNumericParam(sideLength, 'side length')
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return (sideLength ** 2)
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}
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/*
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Calculate the area of a triangle
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Wikipedia reference: https://en.wikipedia.org/wiki/Area#Triangle_area
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return base * height / 2
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*/
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const areaTriangle = (base, height) => {
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validateNumericParam(base, 'Base')
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validateNumericParam(height, 'Height')
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return (base * height) / 2.0
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}
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/*
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Calculate the area of a parallelogram
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Wikipedia reference: https://en.wikipedia.org/wiki/Area#Dissection,_parallelograms,_and_triangles
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*/
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const areaParallelogram = (base, height) => {
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validateNumericParam(base, 'Base')
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validateNumericParam(height, 'Height')
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return (base * height)
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}
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/*
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Calculate the area of a trapezium
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*/
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const areaTrapezium = (base1, base2, height) => {
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validateNumericParam(base1, 'Base One')
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validateNumericParam(base2, 'Base Two')
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validateNumericParam(height, 'Height')
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return 1.0 / 2.0 * (base1 + base2) * height
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}
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/*
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Calculate the area of a circle
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*/
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const areaCircle = (radius) => {
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validateNumericParam(radius, 'Radius')
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return (Math.PI * radius ** 2)
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}
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/*
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Calculate the area of a rhombus
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Wikipedia reference: https://en.wikipedia.org/wiki/Rhombus
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*/
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const areaRhombus = (diagonal1, diagonal2) => {
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validateNumericParam(diagonal1, 'diagonal one')
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validateNumericParam(diagonal2, 'diagonal two')
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return (1 / 2 * diagonal1 * diagonal2)
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}
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const validateNumericParam = (param, paramName = 'param') => {
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if (typeof param !== 'number') {
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throw new TypeError('The ' + paramName + ' should be type Number')
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} else if (param < 0) {
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throw new Error('The ' + paramName + ' only accepts non-negative values')
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}
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}
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export { surfaceAreaCube, surfaceAreaSphere, areaRectangle, areaSquare, areaTriangle, areaParallelogram, areaTrapezium, areaCircle, areaRhombus }
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