Javascript - 如何平方一个数字? [英] Javascript - How to squared a number?

问题描述

使用javascript函数

Using the javascript function

function squareIt(number) {
   return number * number;
}

当给定数字 4294967296 时，函数返回 18446744073709552000 返回

When given the number 4294967296 the function returns 18446744073709552000 is returned

大家都知道真正的答案是18446744073709551616 :-)

Everyone knows the real answer is 18446744073709551616 :-)

我想这是为了在我的 32 位机器上进行舍入.但是，这个脚本会在 64 位机器上给出正确答案吗?有人试过吗?

I guess this is to to with rounding on my 32-bit machine. However, would this script give the right answer on a 64 bit machine? Has anyone tried this?

推荐答案

ChrisV- 看这篇文章.此外，通过在浏览器 URL 文本框中直接输入以下 JavaScript，人们可以更轻松地评估您的问题:

ChrisV- see this post. Also it easier for people to evaluate your question by typing the following JavaScript directly into the browser URL textbox:

javascript:4294967296*4294967296

这篇关于Javascript - 如何平方一个数字?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！