NewTicker function example
The task of running functions on a periodic basis can be split into two
parts: timing and execution.
A ticker solves the timing problem by providing a channel that get new
input every period. Keeping the timing separate mitigates the impact of
execution on the timing period (e.g., it won’t be execution time + sleep
time)
Execution can be solved by ranging over the ticker channel. The contents of
the loop will be run for each input received from the ticker channel. If
the loop executes in less than one period, the loop will execute every
period.
Since tickers use channels, the execution loop can be run anywhere, though
they are frequently used in goroutines because the program is also doing
something else.
I would simplify Rodolfo’s examples to:
package main
import (
"fmt"
"time"
)
func square(x int) int {
return x * x
}
func cube(x int) int {
return x * x * x
}
func main() {
ticker := time.NewTicker(5 * time.Second)
for range ticker.C {
fmt.Println(square(10))
fmt.Println(cube(10))
}
}
This will run square and cube every 5 seconds while the program is
executing.
On Thursday, February 23, 2017 at 2:39:12 AM UTC+1, Keith Brown wrote:
>
> Oddly, I can't find a single example on the world wide web for what I am
> trying to do.
>
> I have 2 functions which I want to run on a periodic basis. The functions
> are square and cube.
> Here is my code so far. https://play.golang.org/p/akMxcg2Sra
> But, I am not sure how to schedule these functions. I looked here,
> https://gobyexample.com/tickers, but really isn't that helpful or
> intuitive.
>
>
>
>
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