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swift round double to 2 decimal places

Santino answered on March 8, 2021 Popularity 9/10 Helpfulness 5/10

answer swift round double to 2 decimal places

swift round double to 2 decimal places

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You can use Swift's round function to accomplish this.

To round a Double with 3 digits precision, first multiply it by 1000, round it and divide the rounded result by 1000:

let x = 1.23556789
let y = Double(round(1000*x)/1000)
print(y)  // 1.236
Other than any kind of printf(...) or String(format: ...) solutions, the result of this operation is still of type Double.

EDIT:
Regarding the comments that it sometimes does not work, please read this:

Popularity 9/10 Helpfulness 5/10 Language swift

Source: Grepper

Tags: decimal double swift

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Contributed on Mar 08 2021

Santino

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swift round double to 2 decimal places

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