在 JavaScript 中使数字值相反
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Make number Value opposite in JavaScript
提问by Aaron Lumsden
I want to know if it is possible to make a number the opposite to what it currently is using JavaScript. ie if a number is 400. Is it possible to make it -400, similar if a number is -400is it possible to make it 400?
我想知道是否有可能使一个数字与当前使用 JavaScript 的数字相反。即如果一个数字是400. 是否有可能做到-400，类似如果一个数字是否-400有可能做到400？
回答by Jay
This is not jQuery!
这不是 jQuery！
Just multiply it by -1.
只需乘以-1。
num = "400"
console.log(-num);
回答by InaFK
Core JS,
核心JS，
function opposite(number) {
return(-number);
}
As the shorter solution from http://www.codewars.com/
作为来自http://www.codewars.com/的更短的解决方案
