|  | var baseIndexOf = require('./_baseIndexOf'); | 
						
						
							|  | 
 | 
						
						
							|  | /** | 
						
						
							|  |  * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol | 
						
						
							|  |  * that is not found in the character symbols. | 
						
						
							|  |  * | 
						
						
							|  |  * @private | 
						
						
							|  |  * @param {Array} strSymbols The string symbols to inspect. | 
						
						
							|  |  * @param {Array} chrSymbols The character symbols to find. | 
						
						
							|  |  * @returns {number} Returns the index of the first unmatched string symbol. | 
						
						
							|  |  */ | 
						
						
							|  | function charsStartIndex(strSymbols, chrSymbols) { | 
						
						
							|  |   var index = -1, | 
						
						
							|  |       length = strSymbols.length; | 
						
						
							|  | 
 | 
						
						
							|  |   while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} | 
						
						
							|  |   return index; | 
						
						
							|  | } | 
						
						
							|  | 
 | 
						
						
							|  | module.exports = charsStartIndex;
 |