I'm just starting: (1)to code (2)for SP (3)with javascript(3) ... and my first choice was a JSOM. Once i've been trying hard to get a value from executeQueryAsync call and set it to local/global variable with promises, deferreds and so on, but without any success. Among all problems there was also my failures with making code work in order i need to get values. Dissynchronization in other words. So i switched to REST and now my average code looks like:

    var listTitle; 
    var itemName;
    var itemId;
    var fileName; 


    function getListName() { 
    //local variables here 
        url: siteUrl + '/_api/web/lists(guid' + listId + ')',
        async: false,
        type: 'GET',
        headers: { 'accept': 'application/json;odata=verbose' },
        success: function (responseData) {
            var a = somehow_get_listTitle_from_response(); 
            listTitle = a;

        error: errorHandler
    function getItemName() { 
    // almost the same code with async: false
    itemName = somehow_get_itemName_from_response()

   // other funcntions like two above;

Well, for now it works, but i'm very curious, is that continuous using of async:false a..."good" style to write SP web parts, custom application pages, custom action and so on? Or smart guys do this stuff somehow else in common?

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