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JavaScript React Components (2018) Stateful Components and Lifecycle Methods Update the Stopwatch State with componentDidMount()

Eduardo Osorio
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Eduardo Osorio
Full Stack JavaScript Techdegree Graduate 20,847 Points
Posted by Eduardo Osorio
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Eduardo Osorio
Full Stack JavaScript Techdegree Graduate 20,847 Points

Why is he calling this.tick() inside set interval instead of just passing it as a callback ie: this.tick ?

Thought you passed a callback into set interval

1 Answer

Nathan Piper
Nathan Piper
5,711 Points
Nathan Piper
Nathan Piper
5,711 Points

Usually anonymous functions are only passed to setInterval when the function you are trying to call needs parameters set i.e. setInterval( (someValue) => someFunction(someValue), 1000), however this is not the case with the tick function so I'm assuming it it is purely for conventional purposes. The function will work either way though.