圣诞树动画

Question

Igor Garnik

Asked:2020-07-09 23:00:09 +0000 UTC2020-07-09 23:00:09 +0000 UTC 2020-07-09 23:00:09 +0000 UTC

如何将带参数的函数传递给 SetInterval

需要给函数传一个参数，但是这种形式的interval不起作用

playGame() {
    this.interval = setInterval(this.gameService.startLife(this.field), 
    this.timeLeft)
 }

user176262 · Answer 1 · 2020-07-09T23:03:06Z

user176262

playGame() {
  this.interval = setInterval(
    this.gameService.startLife, 
    this.timeLeft,
    this.field
  );
}

对于 IE9：

playGame() {
  this.interval = setInterval(
    (function () { this.gameService.startLife(this.field); }).bind(this), 
    this.timeLeft
  );
}

对于 IE8：

playGame() {
  var that = this;
  this.interval = setInterval(
    function () { that.gameService.startLife(that.field); }, 
    this.timeLeft
  );
}

Diskyp · Answer 2 · 2020-07-09T23:24:25Z

Best Answer

Diskyp

通过添加回调可以更轻松地修复此代码：

playGame() {
    this.interval = setInterval(()=>this.gameService.startLife(this.field), 
    this.timeLeft)
 }