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
266 views
in Technique[技术] by (71.8m points)

ios - Removing from array during enumeration in Swift?

I want to enumerate through an array in Swift, and remove certain items. I'm wondering if this is safe to do, and if not, how I'm supposed to achieve this.

Currently, I'd be doing this:

for (index, aString: String) in enumerate(array) {
    //Some of the strings...
    array.removeAtIndex(index)
}
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)

In Swift 2 this is quite easy using enumerate and reverse.

var a = [1,2,3,4,5,6]
for (i,num) in a.enumerate().reverse() {
    a.removeAtIndex(i)
}
print(a)

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

...