Write a JavaScript program to test a value, x, against a predicate function. If true, return fn(x). Else, return x

hamza

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2022-05-18

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Write a JavaScript program to test a value, x, against a predicate function. If true, return fn(x). Else, return x.

JavaScript programming, Programming,

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hamza

2022-05-18

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const when = (pred, whenTrue) => x => (pred(x) ? whenTrue(x) : x);
const doubleEvenNumbers = when(x => x % 2 === 0, x => x * 2);
console.log(doubleEvenNumbers(2));
console.log(doubleEvenNumbers(1));

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Write a JavaScript program to test a value, x, against a predicate function. If true, return fn(x). Else, return x

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