javascript console

익스플로러를 제외한 모든 브라우저에 설치되어 있는 JS 마우스 우 클릭 - 검사

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내 컴퓨터에서 .....

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코드

const myName="withSeok";

console.log(myName + ", HI!");

myName = "withSeok_New"

console.log(myName + ", HI! (New)");

let myName="withSeok"; console.log(myName + ", HI!"); myName = "withSeok_New" console.log(myName + ", HI! (New)");

코드

let var_bool=1;

console.log(var_bool);

var_bool=true;

console.log(var_bool);

var_bool=false;

console.log(var_bool);

var_bool=null;

console.log(var_bool);

코드

 

let var_bool=null;

console.log(var_bool);

let var_bool2;

console.log(var_bool2);

코드

const myArray=['mon', 'tue', 3,4,true, false, null, undefined, "HI"]

console.log(myArray);

코드

const daysOfWeek = ["mon","tue","wed","tue","fri","sat","sun"];

console.log(daysOfWeek[0]);

console.log(daysOfWeek[2]);

코드

const daysOfWeek = ["mon","tue","wed","tue","fri","sat"];

console.log(daysOfWeek);

daysOfWeek.push("sun");

console.log(daysOfWeek);

 

코드

const player1 = {

    name: "withSeok",

    sex: "man",

    age: 99,

    korean: true

};

console.log(player1);

코드

const player1 = {

    name: "withSeok",

    sex: "man",

    age: 99,

    korean: true

};

console.log(player1.name);

console.log(player1["age"]);

코드

const player1 = {

    name: "withSeok",

    sex: "man",

    age: 99,

    korean: true

};

console.log(player1);

player1.sex="woman";

console.log(player1);

코드

const player1 = {

    name: "withSeok",

    sex: "man",

    age: 99,

    korean: true

};

console.log(player1);

player1.power=300;

console.log(player1);

코드

const player1 = {

    name: "withSeok",

    sex: "man",

    age: 99,

    korean: true,

    power : 300

};

console.log(player1);

player1.power=player1.power + 100;

console.log(player1);