| 1 | import toArray from './toArray.js';
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| 2 |
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| 3 | /**
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| 4 | * Gets the next value on a wrapped object following the
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| 5 | * [iterator protocol](https://mdn.io/iteration_protocols#iterator).
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| 6 | *
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| 7 | * @name next
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| 8 | * @memberOf _
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| 9 | * @since 4.0.0
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| 10 | * @category Seq
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| 11 | * @returns {Object} Returns the next iterator value.
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| 12 | * @example
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| 13 | *
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| 14 | * var wrapped = _([1, 2]);
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| 15 | *
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| 16 | * wrapped.next();
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| 17 | * // => { 'done': false, 'value': 1 }
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| 18 | *
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| 19 | * wrapped.next();
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| 20 | * // => { 'done': false, 'value': 2 }
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| 21 | *
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| 22 | * wrapped.next();
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| 23 | * // => { 'done': true, 'value': undefined }
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| 24 | */
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| 25 | function wrapperNext() {
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| 26 | if (this.__values__ === undefined) {
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| 27 | this.__values__ = toArray(this.value());
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| 28 | }
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| 29 | var done = this.__index__ >= this.__values__.length,
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| 30 | value = done ? undefined : this.__values__[this.__index__++];
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| 31 |
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| 32 | return { 'done': done, 'value': value };
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| 33 | }
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| 34 |
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| 35 | export default wrapperNext;
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