Method _setArgumentsValues

src/AutoNumeric.js:954–1107

* Take the parameters given to the AutoNumeric object, and output the three variables that are needed to finish initializing it : * - domElement : The target DOM element * - initialValue : The initial value, or `null` if none is given * - userOptions : The option object * *

(arg1, arg2, arg3)

     * @private
     */
    static _setArgumentsValues(arg1, arg2, arg3) {
        // Basic check on the argument count
        if (AutoNumericHelper.isNull(arg1)) {
            AutoNumericHelper.throwError('At least one valid parameter is needed in order to initialize an AutoNumeric object');
        }

        // Prepare the arguments in order to create the AutoNumeric object with the right values
        // Test the argument types
        const isArg1Element = AutoNumericHelper.isElement(arg1);
        const isArg1String = AutoNumericHelper.isString(arg1);

        const isArg2Object = AutoNumericHelper.isObject(arg2);
        const isArg2Array = Array.isArray(arg2) && arg2.length > 0;
        const isArg2Number = AutoNumericHelper.isNumberOrArabic(arg2) || arg2 === '';
        const isArg2PreDefinedOptionName = this._isPreDefinedOptionValid(arg2);
        const isArg2Null = AutoNumericHelper.isNull(arg2);
        const isArg2EmptyString = AutoNumericHelper.isEmptyString(arg2);

        const isArg3Object = AutoNumericHelper.isObject(arg3);
        const isArg3Array = Array.isArray(arg3) && arg3.length > 0;
        const isArg3Null = AutoNumericHelper.isNull(arg3);
        const isArg3PreDefinedOptionName = this._isPreDefinedOptionValid(arg3);

        // Given the parameters passed, sort the data and return a stable state before the initialization
        let domElement;
        let userOptions;
        let initialValue;

        //TODO Simplify those tests -->
        if (isArg1Element && isArg2Null && isArg3Null) {
            // new AutoNumeric(domElement); // With the default options
            domElement = arg1;
            initialValue = null;
            userOptions = null;
        } else if (isArg1Element && isArg2Number && isArg3Null) {
            // new AutoNumeric(domElement, 12345.789); // With the default options, and an initial value
            // new AutoNumeric(domElement, '12345.789');
            domElement = arg1;
            initialValue = arg2;
            userOptions = null;
        } else if (isArg1Element && isArg2Object && isArg3Null) {
            // new AutoNumeric(domElement, { options }); // With one option object
            domElement = arg1;
            initialValue = null;
            userOptions = arg2;
        } else if (isArg1Element && isArg2PreDefinedOptionName && isArg3Null) {
            // new AutoNumeric(domElement, 'euroPos'); // With one pre-defined option name
            domElement = arg1;
            initialValue = null;
            userOptions = this._getOptionObject(arg2);
        } else if (isArg1Element && isArg2Array && isArg3Null) {
            // new AutoNumeric(domElement, [{ options1 }, { options2 }]); // With multiple option objects (the latest option overwriting the previous ones)
            domElement = arg1;
            initialValue = null;
            userOptions = this.mergeOptions(arg2);
        } else if (isArg1Element && (isArg2Null || isArg2EmptyString) && isArg3Object) {
            // new AutoNumeric(domElement, null, { options }); // With one option object
            domElement = arg1;