Today #day24 of #100daysofcode, I have completed 2 lessons and a practice program in JS. @Sololearn

Math Operators

Arithmetic operators

• the arithmetic operators are +,-,/,*,%,++,--,,,,

Note:

• \ is escape character.
• eval() function text string argument can perform arithmetic operations. Example:

var x = 10 + 5;
document.write(x);

document.write("<br>"+eval("5+9/6*4%79-862"))

Code: Output

Note:

• multiplying string type of number value with a number will give output.
• but multiplying string type of string value with a number will result error i.e NaN
  • in Python multiplying and number with a string type of string value multiply the string value in the house
• you can add a string type of number value to a number.
• you can add string type of string value to a number.

var x = 10 * 5;
document.write("10 * 5\ = "+x);

document.write("<br>"+"\"10\" * 5\ = "+"10"*5);
document.write("<br>"+"\"Hi\"*5\ = "+"Hi"*5);
document.write("<br>"+"\"10\"+5\ = "+"10"+5);
document.write("<br>"+"\"Hi\"+5\ = "+"Hi"+5);

Code: Output

increment and decrement operators

• the increment operator increases the value it's operate by one,a=0,b=0,a++ then a=1.

Note:

• a=b++ --> a=0,b=1
• a=++b--> a=1,b=1

Assignment operators

• =,+=,-=,*=,/=,%=

Image

Conclusion

1. Arithmetic operators.
2. Increment and decrement operators.
3. Assignment operators.

References: Sololearn

Author: Dheeraj.y

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