// CLASS TOPICS : Primitive vs reference DATA TYPES
// PRIMITIVE TYPE
// x = 10;
// y = x;
// x = 20;
// console.log(x,y);
// here x and y both are same but locating different positions in memory and saved at diff places
// REFERENCE TYPE
// x = {name:"shagun",email:"abc@gmail.com"};
// y = x;
// x = {name:"abc"};
// console.log(x,y);
// both are pointing same location on memory but later on x is pointing a diff location
// REFERENCE TYPE
// x = {name:"shagun",email:"abc@gmail.com"};
// y = x;
// x.name = "testing name";
// console.log(x,y);
// both are pointing same location on memory. so if one is change other will also reflect the same change
// PRIMITIVE TYPES
// numbers , string , boolean , null , undefined
// REFERENCE TYPES
// object , array , functions are reference type
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