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30 lines
596 B
30 lines
596 B
3 years ago
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/**
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* Obliterator Map Function
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* ===========================
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*
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* Function returning a iterator mapping the given iterator's values.
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*/
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var Iterator = require('./iterator.js');
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var iter = require('./iter.js');
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/**
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* Map.
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*
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* @param {Iterator} target - Target iterable.
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* @param {function} mapper - Map function.
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* @return {Iterator}
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*/
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module.exports = function map(target, mapper) {
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var iterator = iter(target);
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return new Iterator(function next() {
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var step = iterator.next();
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if (step.done) return step;
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return {
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value: mapper(step.value)
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};
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});
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};
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