var list = [],

    n = 0;

while(true) {

    n++;

    const div = document.createElement('div');

    div.innerHTML = '<span style="display: block; color: red;">hey you</span>'

    list.push();

    if(n===100000) 

        break;

}

var list = [],

    n = 0,

    node = document.createElement('div');

node.innerHTML = '<span style="display: block; color: red;">hey you</span>'

while(true) {

    n++;

    list.push(node.cloneNode(true));

    if(n===100000) 

        break;

}