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35 rivejä
836 B
35 rivejä
836 B
var toArray = require('./toArray');
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/**
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* Gets the next value on a wrapped object following the
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* [iterator protocol](https://mdn.io/iteration_protocols#iterator).
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*
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* @name next
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* @memberOf _
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* @since 4.0.0
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* @category Seq
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* @returns {Object} Returns the next iterator value.
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* @example
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*
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* var wrapped = _([1, 2]);
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*
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* wrapped.next();
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* // => { 'done': false, 'value': 1 }
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*
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* wrapped.next();
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* // => { 'done': false, 'value': 2 }
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*
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* wrapped.next();
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* // => { 'done': true, 'value': undefined }
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*/
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function wrapperNext() {
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if (this.__values__ === undefined) {
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this.__values__ = toArray(this.value());
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}
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var done = this.__index__ >= this.__values__.length,
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value = done ? undefined : this.__values__[this.__index__++];
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return { 'done': done, 'value': value };
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}
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module.exports = wrapperNext;
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