floor and ceiling code example

Example 1: javascript ceiling

var ceiling1 = Math.ceil(4.7); //5 
var ceiling2 = Math.ceil(-3.4); //-3

Example 2: ceil and floor

Examples of Floor:
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Input : 2.5
Output : 2

Input : -2.1
Output : -3

Input : 2.9
Output : 2

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Examples of Ceil:
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Input : 2.5
Output : 3

Input : -2.1
Output : -2

Input : 2.9
Output : 3