for (const element of array) {
    const existigElementById = newArray.find((item) => item.numId === element.numId)
    if (existigElementById) {
        const existigElementByILvl = existigElementById.levels.find((item) => item.ilvl === element.ilvl)
        if (existigElementByILvl) {
            existigElementByILvl.children.push({
                text: element.text
            })
        } else {
            existigElementById.levels.push({
                ilvl: element.ilvl,
                children: [{
                    text: element.text
                }]
            })
        }
    } else {
        newArray.push({
            numId: element.numId,
            levels: [
                {
                    ilvl: element.ilvl,
                    children: [{
                        text: element.text
                    }]
                }
            ]
        })
    }
}