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MaxXxiMast/checkSign.js

Last active June 25, 2019 06:45
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Check the Sign on a Number taking -ve 0 into consideration
Raw
checkSign.js
function checkSign(x){
return x !== 0 ? Math.sign(x) : Object.is(x, -0) ? -1 : 1;
}
checkSign(-0) // -1 i.e. -ve sign
checkSign(0) // 1 i.e. +ve sign
checkSign(-6) // -1
checkSign(6) // 1
credits: Kyle Simpson (getify)
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