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This article mainly introduces "what is ceil in javascript". In daily operation, I believe many people have doubts about what is ceil in javascript. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "what is ceil in javascript"! Next, please follow the editor to study!

In javascript, ceil means "round up", is used to round the number up to the nearest integer built-in function, the syntax format is "Math.ceil (x)", the parameter "x" must be a numeric value; the return value of this function is greater than or equal to the parameter "x", and the nearest integer.

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

Ceil () is a "round up" built-in function in javascript.

The ceil () function rounds the number up to the nearest integer and returns the result. If the parameter passed is an integer, the value is not rounded.

The ceil () method performs an up-rounding calculation, which returns the integer that is greater than or equal to the function parameter and is closest to it.

Syntax:

Math.ceil (x)

X: required. Must be a numeric value.

Return value: type Number, which is an integer greater than or equal to x and closest to it.

Example:

Console.log (Math.ceil (0.60); console.log (Math.ceil (0.40)); console.log (Math.ceil (5)); console.log (Math.ceil (5.1)); console.log (Math.ceil (- 5.1)); console.log (Math.ceil (- 5.9))

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