get elements from board as JSON about jkanban HOT 7 OPEN

 methods: {
        renderJSON(){
            const obj = this.$refs.demo2
            let boards = []
            obj.querySelectorAll('.kanban-board').forEach(el => {
                let items = []
                el.querySelectorAll('.kanban-item').forEach(i => {
                    items.push({
                        title: i.innerHTML,
                    })
                })
                boards.push({
                    id: el.getAttribute('data-id'),
                    title: el.querySelector('.kanban-title-board').innerHTML,
                    items,
                })
            })
            return boards
        }
    },

methods: {
        renderJSON(){
            const obj = this.$refs.demo2
            let boards = []
            obj.querySelectorAll('.kanban-board').forEach(el => {
                let items = []
                el.querySelectorAll('.kanban-item').forEach(i => {
                    items.push({
                        title: i.childNodes[1].innerHTML,
                    })
                })
                boards.push({
                    id: el.getAttribute('data-id'),
                    title: el.querySelector('.kanban-title-board').innerHTML,
                    items,
                })
            })
            return boards
        }
    },

function renderJSON() {
    const obj = document.querySelector('#div_jkanban_id'); // EDIT YOUR DIV ID
    let boards = [];
    obj.querySelectorAll('.kanban-board').forEach(el => {
        let items = [];
        el.querySelectorAll('.kanban-item').forEach(i => {
            items.push({
                element_id: i.getAttribute('data-eid'),
            })
        })
        boards.push({
            board_id: el.getAttribute('data-id'),
            items,
        })
    })
    return JSON.stringify(boards);
}