Method _setTrailingNegativeSignInfo

src/AutoNumeric.js:4953–4957

* Keep track if the settings configuration leads to a trailing negative sign (only when the raw value is negative), so we do not have to test the settings values every time we need to know that. * `isTrailingNegative` is set to `true` if the settings result in a trailing negative character, `fa

()

     * @private
     */
    _setTrailingNegativeSignInfo() {
        this.isTrailingNegative = (this.settings.currencySymbolPlacement === AutoNumeric.options.currencySymbolPlacement.prefix && this.settings.negativePositiveSignPlacement === AutoNumeric.options.negativePositiveSignPlacement.suffix) ||
        (this.settings.currencySymbolPlacement === AutoNumeric.options.currencySymbolPlacement.suffix &&
        (this.settings.negativePositiveSignPlacement === AutoNumeric.options.negativePositiveSignPlacement.left || this.settings.negativePositiveSignPlacement === AutoNumeric.options.negativePositiveSignPlacement.right));
    }

    /**
     * Strip all the unwanted non-number characters.