JavaScript Arithmetic Operators

Addition, String concatenation +

• console.log(1+1) //2
• console.log(1+'1') //11
• console.log(a+'1') //a1
• console.log('a'+'a') //aa
• console.log(2 + 2 + '1') //41
• console.log('1' + 2 + 2) //122

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Subtration -

• console.log(10-1) //9
• console.log(10-'1') //9
• console.log(10-'a') //NaN
• console.log('a'-'a') //NaN

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Multiplication *

• console.log(5*2) //10
• console.log(5*'2') //10
• console.log(5*'a') //NaN

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Division /

• console.log(10/2) //5
• console.log(10/3) //3.333333
• console.log('10'/'5') //2
• console.log('a'/2) //NaN

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Modulas %

• console.log(5%2) //1

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Power **

• console.log(2**3) // 2³=8

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Assignment =

• console.log(a=10) //value assigned
• console.log(a = b = c = 2) //Chaining assignment

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Comma ,

• let a=1,2; console.log(a); //2
• let a=1+2,3+4; console.log(a); //7

Comparison >, <, >=, <=, ==, !=, ===

• console.log(5>6) //false
• console.log(5<6) //true
• console.log(5<=5) //true
• console.log(5<5) //false
• console.log(5==5) //true
• console.log(5!=5) //false
• console.log('a'>'b') //false
• console.log('New Delhi' > 'New York') //false
• console.log('delhi' > 'DELHI') //true
• console.log('1' == 1) //true
• console.log('2' > 1) //true
• console.log('1'===1) //false

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Increment ++

• let a=1; a++; console.log(a); //3
• let a=1; ++a; console.log(a); //3

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Decrement --

• let a=1; a--; console.log(a); //0
• let a=1; --a; console.log(a); //0

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