| 1 | var baseIndexOf = require('./_baseIndexOf');
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| 2 |
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| 3 | /**
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| 4 | * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
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| 5 | * that is not found in the character symbols.
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| 6 | *
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| 7 | * @private
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| 8 | * @param {Array} strSymbols The string symbols to inspect.
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| 9 | * @param {Array} chrSymbols The character symbols to find.
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| 10 | * @returns {number} Returns the index of the first unmatched string symbol.
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| 11 | */
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| 12 | function charsStartIndex(strSymbols, chrSymbols) {
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| 13 | var index = -1,
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| 14 | length = strSymbols.length;
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| 15 |
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| 16 | while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
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| 17 | return index;
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| 18 | }
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| 19 |
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| 20 | module.exports = charsStartIndex;
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