Method _toggleNegativeBracket

src/AutoNumeric.js:5040–5050

* Sets or removes brackets on negative values, depending on the focus state, which is passed as `isFocused`. * The focus state is 'stored' in that object property. * * @param {string} value * @param {object} settings * @param {boolean} isFocused * @returns {*}

(value, settings, isFocused)

     * @returns {*}
     */
    static _toggleNegativeBracket(value, settings, isFocused) {
        //XXX Note; this function is static since we need to pass a `settings` object when calling the static `AutoNumeric.format()` method
        let result;
        if (isFocused) {
            result = this._removeBrackets(value, settings);
        } else {
            result = this._addBrackets(value, settings);
        }

        return result;
    }

    /**
     * Add the bracket types specified in the `settings` object, to the given string `value`.