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- 'use strict';
- var value = require('../../../object/valid-value')
- , toInteger = require('../../../number/to-integer')
- , max = Math.max, min = Math.min;
- module.exports = function (searchString/*, position*/) {
- var start, self = String(value(this));
- start = min(max(toInteger(arguments[1]), 0), self.length);
- return (self.indexOf(searchString, start) === start);
- };
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