Difference between == and === in JavaScript

Difference between == and === in JavaScript

S.No	==	===
1	== denotes equal to	=== denotes exactly equal to including both value and type
2	0= =false // true	0= = =false // false, because they are of a different type
3	1= ="1" // true, auto type coercion	1= = ="1" // false, because they are of a different type

Summary:

JavaScript has both strict and type-converting equality comparison. For strict equality

the objects being compared must have the same type and also the below

characteristics:

• Two strings are strictly equal when they have the same sequence of characters,

same length, and same characters in corresponding positions.

• Two numbers are strictly equal when they are numerically equal (have the same

number value). NaN is not equal to anything, including NaN. Positive and negative

zeros are equal to one another.

• Two Boolean operands are strictly equal if both are true or both are false.

• Two objects are strictly equal if they refer to the same Object.

• Null and Undefined types are == (but not ===).