Javascript integer to integer division will give decimal unless parseInt

 Javascript integer to integer division will product decimal number

parseInt(1) / parseInt(2)

// 0.5

parseInt(0.5)

// 0

Math.ceil(1/2) (Decimal 0.5's ceiling)

// 1

Javascript int and decimal are type "numbers"

typeof(1)

 // "number"

typeof(parseInt(1))

// "number"

typeof(0.5)

// "number"