Assign array of string with the Length of a component

Question

How do I automatically assign the length of an array based on the length of another and push a string to it? Such that in for loop when I copy the string, it will automatically get copied to all the array strings.

public string[] ArrayOfStrings;
public Image[] images;

void Start()
{
    for(int i = 0; i < images.Length; i++)
    {
        ArrayOfStrings[i] = "Testing String";
    }
}

If your arrays have always the same value. You could perform this loop on editor time by using the OnValidate() unity method. It's a good idea to make computation on editor mode when it's possible. Don't forget to call UnityEditor.EditorUtility.SetDirty(this) after your change on the OnValidation method to force serialization of your gameobject. — D.B
– D.B, Commented Oct 7, 2020 at 11:35

D.B · Accepted Answer · 2020-10-07 12:00:36Z

3

ArrayOfStrings = new string[images.Length];

Then you can do the loop

for(int i = 0; i < ArrayOfStrings.Length; i++)
{
    ArrayOfStrings[i] = "Testing String";
}

Or you can use List and linq. For example :

public List<string> ArrayOfStrings;
public List<Image> Images;

void Start()
{
    ArrayOfStrings.AddRange(Images.Select(x => $"the text you want for {x}").ToList());
}

edited Oct 7, 2020 at 12:00

answered Oct 7, 2020 at 11:27

D.B

5945 silver badges17 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

Amar.linsila Over a year ago

Yeah I was planning to go for List. Why is List better than array?

D.B Over a year ago

List can be extend easily because you don't have to specify the length of a list at instantiation. But it depend of what you want to do. Array can have better performance but if you don't make huge computation on a loop on update method. It would be acceptable to use list 99% of time. (Just my opinion) And I like to use linq for list manipulation like select data with conditions or transform data and so one.

Johnathan Barclay Over a year ago

"It would be acceptable to use list 99% of time" Disagree; you would use List<T> only if you require a resizable collection. Behaviour is the primary consideration, not performance.

Johnathan Barclay Over a year ago

Or in other words, use the most restrictive type possible that satisfies your requirements.

D.B Over a year ago

@JohnathanBarclay : Ok you make a point. This is why I wrote this is just my opinion. Because on my common usage of collection I often need resizable and easy to manipulation collection. I could not put word on my habit but your comment is perfect. Thank

Collectives™ on Stack Overflow

Assign array of string with the Length of a component

1 Answer 1

5 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

5 Comments

Your Answer

Sign up or log in

Post as a guest

Related