JavaScript || DSA

console.log("5" - 1);
console.log("5" + 1);
console.log("5" * 2);
console.log("5" / "2");
console.log("five" * 2);

let foo = { n: 1 };
let bar = foo;
bar.n = 2;

console.log(foo.n);

function example(a, b = a) {
  console.log(a + b);
}

example(2);
example(2, 3);

let a = {};
let b = a;

console.log(a === b);

a = null;

console.log(b === null);

let obj = {
  1: "one",
  0: "zero",
  true: "truthy",
  false: "falsy",
};

console.log(obj[1]);
console.log(obj["1"]);
console.log(obj[true]);

console.log(typeof null);
console.log(null instanceof Object);

function greet() {
  return "Hello" || "Hi";
}

function greet2() {
  return "Hello" && "Hi";
}

console.log(greet());
console.log(greet2());

input: arr = [2,0,2,1,1,0] output: [0,0,1,1,2,2] Input: arr = [2,0,1] output: [0, 1, 2]

Savol qiyinlik qilsa, internetdan search qiling, algorithmni qanday ishlashini tushunishga harakat qiling va shuni o'zingiz takroran ishlab ko'ring!!!

Biz buni udaladik!

Input: matrix=[ [1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12], [13, 14, 15, 16] ]; output: [1, 2, 3, 4, 8, 12, 16, 15, 14, 13, 9, 5, 6, 7, 11, 10] Input: matrix=[ [1, 2, 3], [4, 5, 6], [7, 8, 9] ]; Output: [1, 2, 3, 6, 9, 8, 7, 4, 5]

input: arr = [2,3,5] k=5 output: 2 : 2 va 3 larning yi'gindisi 5 ga teng , shunda bizda ikkita element k ga teng Input: arr = [2,3,5,1,9] k = 10 output: 3 -> [2, 3, 5] yokie [1, 9] bizga eng uzuni kerak shuning uchun birinchisi javob bo'ladi.