JavaScript Code: // Define a function named int_round5 that rounds a number up to the nearest multiple of 5.functionint_round5(num){// Divide the number by 5, round the result up to the nearest integer, then multiply by 5.returnMath.ceil(num/5)*5;}// Output the result of roundin...
Math.round(.6) // => 1.0: round to the nearest integer Math.ceil(.6) // => 1.0: round up to an integer Math.floor(.6) // => 0.0: round down to an integer Math.abs(-5) // => 5: absolute value Math.max(x,y,z) // Return the largest argument Math.min(x,y,z) // ...
letf = Math.ceil(-5.9); Try it Yourself » Description TheMath.ceil()method rounds a number rounded UP to the nearest integer. Syntax Math.ceil(x) Parameters ParameterDescription xRequired. A number. Return Value TypeDescription NumberThe nearest integer to the number rounding UP. ...
Math.round(number); Parameters or Arguments number The number that will be rounded. Returns The round() function returns anumberrounded to the nearest integer. In other words, the number is rounded to 0 decimal places. If thenumberis a negative value, the round() function rounds up towards...
1. Math.round(); Math.floor();Math.ceil(); JavaScript: The Definitive Guide, 4th Edition中对三个函数的定义 : Math.ceil(): round a number up Arguments: Any numeric value or expression Returns: The closest integer greater than or equal to x. ...
round(x)Rounds x to the nearest integer sign(x)Returns the sign of a number (checks whether it is positive, negative or zero) sin(x)Returns the sine of x (x is in radians) sinh(x)Returns the hyperbolic sine of x sqrt(x)Returns the square root of x ...
Math.round(x) Here Math is a predefined Javascript object. Round is used to get the value of the number, which is to be rounded off to the nearest integer. This function is a static method and hence is always used in math. Round (x). The return value or the result will be the nu...
Math.round(1.532);// 2 Math.round(1.235);// 1 Math.round(27.94);// 28 Math.round(0.0005);// 0 This function works by rounding your number to the nearest integer. If the first number after the decimal is 5 or higher, it rounds up. If the first number after the decimal is 4 or...
> Math.round(-3.5) -3 > Math.round(-3.8) -4 ``` 因此,`Math.round(x)`与以下相同: ```js Math.ceil(x + 0.5) ``` ### 通过自定义函数 ToInteger()实现整数 将任何值转换为整数的另一个好选择是内部 ECMAScript 操作`ToInteger()`,它去除了浮点数的小数部分。如果它在 JavaScript 中可用,...
It will return something close like .9999999, but it won't ever be a 1. We also want a round number that doesn't include decimals. There are several approaches for rounding a number, but we are rounding the output by Math.floor where we round down to the nearest integer. This ...