Mixed jquery examples

console.log({}+[]); //[object Object]
//================================
console.log({}+{}); //[object Object][object Object]
//================================
console.log(1+'1'); //11
//================================
console.log(1-'1'); //0
//================================
console.log([]+[]); //""
//================================
console.log([]-[]); //0
//================================
console.log([]*[]); //0
//================================
let arrray =[1,2,3,3,4,4,5]; //remove repeated elements

console.log([...new Set(arrray)]);  //[1,2,3,4,5]

//================================

let func = function(){
 
  {
   let l="let";
   var v ="var";
  }
 
  console.log(v); //var
  console.log(l); //error
}

func();
//================================
//to make var and let variable values not accessible outside of the function

let func = function(){
 
 {
    (function(){
       let l="let";
     var v ="var";
   })();
 }

  console.log(v);
  console.log(l);
}

func();
//================================
console.log(5<6<7); //true

console.log(5>6>7); //false
//================================
// true treat as 1
console.log(true < 7); //true
console.log(true > 7); //false
//================================
let X = function(){
  return
  { // after return there should not be any line break if any line break then return; will be treated as do       // not return any thing.
    message:'Hi'
  }
}

console.log(X());  //undefined
//================================
let X = function(){
  return{
    message:'Hi'
  }
}

console.log(X());  //return message:Hi with an object
//================================
let profile = {
  name: 'Ashish'
}


//Object.freeze(profile); //if we freeze the object then further can't modify the existing object
//property values and also can't add new property

profile.name="Ashish Kumar Verma";
profile.age=34;
console.log(profile.name); //disply -Ashish
console.log(profile.age);  // display -undefined

//================================
let profile = {
  name: 'Ashish'
}
//if we use seal() inplace of freeze() method with the current object then we can modifed only existing object property
// but can not add any new property with current object.
Object.seal(profile);
profile.name="Ashish Kumar Verma";
profile.age=34;
console.log(profile.name); //disply -Ashish Kumar Verma
console.log(profile.age);  // display -undefined
//================================
let profile = {
  name: 'Ashish'
}

Object.defineProperty(profile,'age',{
  value:4,
  writable:false // true then modify age value and if false then can not modify values of age
})

profile.name="Verma Kumar Ashish";
profile.age=10;

console.log(profile.name);
console.log(profile.age);


====================================

function a(){
  return "Hello,Function";
}

const sentance= a 'Hi';
const sentance= a('Hi');
console.log(sentance);//error
//================================
<div contentEditable="true">Ashish</div>
//================================
function y(){
  console.log(this.length);
}

var x={
  length:5,
  method:function(y){
    arguments[0]();
  }
};

x.method(y,1); //2
//================================
const x='constructor';

console.log(x);
console.log(x[x]);
console.log(String(01)); //"1"
console.log(x[x](01)); //"1"