Magento2 Default Swatch

[BinhXuanNguyen]

How can i set up default swatch is the first swatch ? what i need to do or do i need change something in admin config ?

[BinhXuanNguyen]

for example, i have 3 color swatches and i need to set up default swatch is the first swatch. I also tried your solution but it didn't work 

I want to set up default swatch is orange 

[Rakesh Jesadiya]

You need to override your swatch-renderer.js file from Magento_Swatches module to your theme or module level,

Keep below code in swatch-renderer.js file, I have modified _init() function of  $.widget('mage.SwatchRenderer') widget in below file,

_init: function () {
            if (_.isEmpty(this.options.jsonConfig.images)) {
                this.options.useAjax = true;
                // creates debounced variant of _LoadProductMedia()
                // to use it in events handlers instead of _LoadProductMedia()
                this._debouncedLoadProductMedia = _.debounce(this._LoadProductMedia.bind(this), 500);
            }

            if (this.options.jsonConfig !== '' && this.options.jsonSwatchConfig !== '') {
                // store unsorted attributes
                this.options.jsonConfig.mappedAttributes = _.clone(this.options.jsonConfig.attributes);
                this._sortAttributes();
                this._RenderControls();

                //this is additional code for select first attribute value
                if (this.options.jsonConfig.attributes.length > 0) {
                    var selectswatch = this.element.find('.' + this.options.classes.attributeClass + ' .' + this.options.classes.attributeOptionsWrapper);
                    $.each(selectswatch, function (index, item) {
                        var swatchOption = $(item).find('div.swatch-option').first();
                        if (swatchOption.length && !$(item).find('div.swatch-option').hasClass('selected')) {
                            swatchOption.trigger('click');
                        }
                    });
                }

                this._setPreSelectedGallery();
                $(this.element).trigger('swatch.initialized');
            } else {
                console.log('SwatchRenderer: No input data received');
            }
            this.options.tierPriceTemplate = $(this.options.tierPriceTemplateSelector).html();
        },

Clear cache and check.

[BinhXuanNguyen]

Thank you for your help, i already overrode swatch_renderer.js to my theme and ran command php bin/magento cache:clean and php bin/magento cache:flush but nothing happened 

[BinhXuanNguyen]

[BinhXuanNguyen]

My swatch_renderer.js is successfully applied but when i reload page, nothing happened with your code "select first swatch value" 

[BinhXuanNguyen]

Can you tell me how you check ? Did you add new color swatch or something ? 

[Rakesh Jesadiya · Accepted solution]

I have checked using color swatch and size text swatch with different products in product page. Might be you have js takes from other modules instead of your override modules.