WooCommerce select first option on all single variation dropdowns

woo-select-all-single-selects.js

let selectFields = document.querySelectorAll(".wc-default-select");

selectFields.forEach( (item, index) => {
	let itemLen = item.length;
	// check length console.log(brand);
	if (itemLen == 2){
		// set index
		item.selectedIndex = 1;
		//console.log("selected");
	}else{
		console.log("died");
	}
	
});