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@@ -0,0 +1,57 @@
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+//1,2,4,5,6,7,8task
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+var a = {
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+ name:"Vasiliy",
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+ surname:"Pupkin",
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+}
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+var b = {
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+ name:"Petr",
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+ surname:"Sidorov",
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+}
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+var c = {
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+ name:"Maria",
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+ surname:"Andreeva",
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+}
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+
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+a.sex = "male";
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+c.sex = "female";
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+b.married = "true";
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+c.education = "secondary";
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+a.age = 15;
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+
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+var persons= [];
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+
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+persons[0] = a
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+persons[1] = b
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+persons[2] = c
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+persons[3] = {
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+ name:"Jacob",
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+ surname:"Brown",
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+ age:45,
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+ married:"false"
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+}
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+
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+// for (let i = 0; i<persons.length;i++){
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+// console.log(persons[i])
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+// }
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+
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+// for (let i = 0; i<persons.length;i++){
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+// console.log(persons[i]["name"])
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+// console.log(persons[i]["surname"])
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+// }
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+//3task
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+
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+//не понял , что такое необязательные поля
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+
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+// alert(Object.values(a))
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+// alert(Object.values(b))
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+// alert(Object.values(c))
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+
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+// for (let i = 0; i < persons.length; i++) {
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+// persons[i]["fullName"] = `${persons[i]["surname"]} ${persons[i]["name"]}`
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+// if (undefined !== persons[i]["fathername"]) {
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+// persons[i]["fullName"] += " "+persons[i]["fathername"]
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+// }
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+// }
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+
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+
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+
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