JavaScriptで小数を整数にする
1.floor
Math.floor(12.9999) = 12
2.ceil
Math.ceil(12.1) = 13;
3.round
Math.round(12.5) = 13
Math.round(12.4) = 12
Coding Changes the World
1.floor
Math.floor(12.9999) = 12
2.ceil
Math.ceil(12.1) = 13;
3.round
Math.round(12.5) = 13
Math.round(12.4) = 12