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17 lines
440 B
JavaScript
17 lines
440 B
JavaScript
function circle(radius)
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{
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this.radius = radius;
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// area method
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this.area = function ()
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{
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return Math.PI * this.radius * this.radius;
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};
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// perimeter method
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this.perimeter = function ()
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{
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return 2*Math.PI*this.radius;
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};
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}
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var c = new circle(3);
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console.log('Area =', c.area().toFixed(2));
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console.log('perimeter =', c.perimeter().toFixed(2));
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