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36 lines
614 B
JavaScript
36 lines
614 B
JavaScript
'use strict';
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class GradeBoundaries {
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boundaries;
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constructor(boundaries = {
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'A*': 90,
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'A': 80,
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'B': 70,
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'C': 60,
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'D': 50,
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'E': 40,
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'F': 0
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}) {
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this.boundaries = boundaries;
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}
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getGrade(score) {
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const boundaries = Object.values(this.boundaries);
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for (const [ i, number ] of boundaries.entries()) {
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if (score >= number)
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return Object.entries(this.boundaries)[i][0];
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}
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}
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toString() {
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return Object.entries(this.boundaries).reduce((res, b) => {
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return `${res}\n${b[0]}${' '.repeat(2 - b[0].length)}` +
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`: >= ${b[1]}`;
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}, '');
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}
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}
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module.exports = GradeBoundaries;
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