javascriptの関数の外で変数を呼び出す

Question

javascriptとfirebaseの新機能です。関数の外に変数を呼び出す機会があるかどうか尋ねたいのですが？

ここ

は私のサンプルコードです：

function gotData (data) { 
    console.log(data.val()) 
    var promotions = data.val() 
    var keys = Object.keys(promotions) 
    console.log(keys) 
    for (var i = 0; i < keys.length; i++) { 
    var k = keys[i] 
    var name = promotions[k].promotionName 
    var description = promotions[k].description 
    var validityFrom = promotions[k].validityPeriodFrom 
    var validityTo = promotions[k].validityPeriodTo 
    var dateCreated = promotions[k].dateCreated 
    var dateUpdated = promotions[k].dateUpdated 
    console.log(name, description, validityFrom, validityTo, dateCreated, dateUpdated) 
    } 
} 

私は機能gotDataの名前、説明、validityFromなど外呼び出すことができますか？私は助けを感謝します。前もって感謝します！ :)

Answer 1

は、あなたがの内側に」あなたは多次元データ

var objData = []; 
function gotData (data) { 

    console.log(data.val()) 
    var promotions = data.val() 
    var keys = Object.keys(promotions) 

    for (var i = 0; i < keys.length; i++) { 
    var tempObj = []; 
    var k = keys[i] 
    tempObj['promotionName'] = promotions[k].promotionName; 
    tempObj['description'] = promotions[k].description; 
    tempObj['validityPeriodFrom'] = promotions[k].validityPeriodFrom; 
    tempObj['validityPeriodTo'] = promotions[k].validityPeriodTo; 
    tempObj['dateCreated'] = promotions[k].dateCreated; 
    tempObj['dateUpdated'] = promotions[k].dateUpdated; 

    objData.push(tempObj); 
    } 
    console.log(objData) 
}