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JavaScript React Components (2018) Stateful Components and Lifecycle Methods Prevent Memory Leaks with componentWillUnmount()

disheng wang
disheng wang
5,422 Points
Posted by disheng wang
disheng wang
5,422 Points

Question about the arguments passing in to the setInterval method

From the componeDidMount life cycle , code below: 

  componentDidMount() {
    this.intervalID = setInterval(() => this.tick(), 100);
    console.log(this);
  }

here we pass ()=>this.tick() to the setInterval method. However, I am a bit confuse what is the different between we pass this.tick instead of () => this.tick()? i think they doing the same thing right? or is it just if we use arrow function calling the this.tick so I can pass the argument to the tick method? thanks