콤보 박스를 선택하고 창을 여세요.

Open window

    let share = (function() {
        const elCombo = document.getElementById("mycombo");   
        const elBtn = document.getElementById("btn-openwin");
    
        return {
            elCombo: elCombo,
            elBtn: elBtn
        }
    })();
    
    window.addEventListener("load", () => {
        
        share.elCombo.addEventListener("change", e => window.localStorage.setItem("fruit", e.target.value)); 
    
        share.elBtn.addEventListener("click", e => {
            let wWidth = 880,
                wHeight = 300;
            let x = (window.innerWidth - wWidth) / 2;
            let y = (window.innerHeight - wHeight) / 2;
            let winSpec = `width=${wWidth},height=${wHeight},left=${x}, top=${y},menubar=no,status=no`;
            window.open("./sub.html", "", winSpec);
        });
    });
    window.addEventListener("storage", e => {
        const elApplyOption = share.elCombo.querySelector(`option[value="${e.newValue}"]`);
        let index = Array.from(share.elCombo.children).indexOf(elApplyOption);
        share.elCombo.selectedIndex = index;
    });