var myObj = {
            "number": 10,
            "general": "general",
            "array": [{
                "num1": 11,
                "text": "text1",
            }, {
                "num2": 1,
                "text": "text2",
            }, {
                "num3": 3,
                "text": "text3",

            } ]
        };

for (i=0; i <myObj.array.length; i++) {
    a = myObj.array[i].text
    a1 += a
}

var myObj = {
            "number": 10,
            "general": "general",
            "array": [{
                "num1": 11,
                "text": "text1",
            }, {
                "num2": 1,
                "text": "text2",
            }, {
                "num3": 3,
                "text": "text3",

            }, ]
        };

var a1 = [];
for (i=0; i <myObj.array.length; i++) {
    a1.push(myObj.array[i].text);
}
a1.join(',')

myObj.array.map(function (item) {
  return item.text;
});