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CODE EXAMPLE FOR JAVASCRIPT

JavaScript filter method

const grades = [10, 2, 21, 35, 50, -10, 0, 1];

// get all grades > 20
const result = grades.filter(grade => grade > 20); // [21, 35, 50];

// get all grades > 30
grades.filter(grade => grade > 30); // [35, 50]
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