如何在 javascript 中调用具有多个值的 function？ 移相器3

Question

I'm a javascript beginner and I know I should read the tutorials and all. However the tutorials only mention how to return a value within a function and I want to return multiple values. I'm using phaser 3 and I want to call a function that will give a coin physics. here's the code

 function coins(coin) { coin.setBounce(1); coin.body.setGravityY(300); this.physics.add.collider(coin, platforms); this.physics.add.collider(player, coin, collectCoin, null, this); coin.setVelocityX(60); coin.setVelocityY(-300); coin.setCollideWorldBounds(true); }

Please help me out, I've asked a couple of other places and have received no answers.

Answer 1

You can not return multiple values in js, but you can return an array or object with all values you need. Like:

return [val1, val2]   or   return {val1, val2}

And then access them:

answer[0]   or   answer.val1   or   answer["val1"]

Answer 2

I've created a simple snippet here for you to a) show how to call a function with multiple arguments; and b) how return multiple values from a functino:

 class Coin { setBounce(value) {} setVelocityX(value) {} setVelocityY(value) {} setCollideWorldBounds(value) {} body = { setGravityY(value) {}, }; } var physics = { add: { collider(...args) {}, }, }; function coins(coin, platforms, player, collectCoin) { coin.setBounce(1); coin.body.setGravityY(300); this.physics.add.collider(coin, platforms); this.physics.add.collider(player, coin, collectCoin, null, this); coin.setVelocityX(60); coin.setVelocityY(-300); coin.setCollideWorldBounds(true); /* Below is how you return multiple values from a function in this case it's an array of values, but it could be an object too. */ return ["Hello", "World"]; // <- this } let coin = new Coin(); // Below is how you call the function coins with multiple arguments let result = coins(coin, "platforms", "player", "collectCoin"); console.log(result);

Let me know if you have any questions regarding the snippet above.