Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
573 views
in Technique[技术] by (71.8m points)

Assign multiple variables to the same value in Javascript?

I have initialized several variables in the global scope in a JavaScript file:

var moveUp, moveDown, moveLeft, moveRight;
var mouseDown, touchDown;

I need to set all of these variables to false. This is the code I currently have:

moveUp    = false;
moveDown  = false;
moveLeft  = false;
moveRight = false
mouseDown = false;
touchDown = false;

Is there any way that I can set all of these variables to the same value in one line of code, or is the code I currently have the best way to do this?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

Nothing stops you from doing

moveUp = moveDown = moveLeft = moveRight = mouseDown = touchDown = false;

Check this example

var a, b, c;
a = b = c = 10;
console.log(a + b + c)

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...