code: function baseToString(value) {
    // Exit early for strings to avoid a performance hit in some environments.
    if (typeof value === 'string') {
      return value
    }
    if (isSymbol(value)) {
      return symbolToString ? symbolToString.call(value) : ''
    }
    var result = value + ''
    return result == '0' && 1 / value == -INFINITY ? '-0' : result
  }
docs: The base implementation of `_.toString` which doesn't convert nullish
  values to empty strings.
  
  @private
  @param {*} value The value to process.
  @returns {string} Returns the string.