Syntax to put a variable in a string in swift3

Question

A question I think pretty simple but I never had to do it in swift. it's pretty simple PHP but here I do not find my solution on the internet.

ask: I would like to add a variable in this chain of character. Instead of 123, I would need a variable.

final let urlString = "https://ozsqiqjf.preview.infomaniak.website/empdata_123.json"

result = final let urlString = "https://ozsqiqjf.preview.infomaniak.website/empdata_VARAIBLE.json"

Can you give me the syntax in swift3 or direct me to a good tutorial.

final let is a contradiction in terms.

vadian
– vadian

2017-10-31 08:00:43 +00:00
Commented Oct 31, 2017 at 8:00 — vadian
– vadian, Commented Oct 31, 2017 at 8:00

Shamas S · Accepted Answer · 2017-10-31 07:42:33Z

2

You can create a string using string formatting.

String(format:"https://ozsqiqjf.preview.infomaniak.website/empdata_%d.json", variable)

answered Oct 31, 2017 at 7:42

Shamas S

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Burhanuddin Sunelwala · Accepted Answer · 2017-10-31 07:52:01Z

2

let variable = 123
final let urlString = "https://ozsqiqjf.preview.infomaniak.website/empdata_\(variable).json"

\(variable) is what you need

OR

use string formatting

let variable = 123
final let urlString = String(format:"https://ozsqiqjf.preview.infomaniak.website/empdata_%d.json", variable)

answered Oct 31, 2017 at 7:52

Burhanuddin Sunelwala

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Mika · Accepted Answer · 2017-10-31 07:52:14Z

2

There is good documentation about Strings in Swift Language Guide. Your options are:

Concatenating Strings

let urlString = "https://ozsqiqjf.preview.infomaniak.website/empdata_" + value + ".json"

String interpolation

let urlString = "https://ozsqiqjf.preview.infomaniak.website/empdata_\(value).json"

answered Oct 31, 2017 at 7:52

Mika

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BuLB JoBs · Accepted Answer · 2017-10-31 08:28:27Z

2

Swift4 You can add a string in these ways:

var myString = "123" // Or VARAIBLE Here any string you pass!! 
var urlString = "https://ozsqiqjf.preview.infomaniak.website/empdata_\(myString).json"

edited Oct 31, 2017 at 8:28

answered Oct 31, 2017 at 7:50

BuLB JoBs

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eFox · Accepted Answer · 2017-10-31 07:49:02Z

1

A simple way of doing it could be:

final let urlString = "https://ozsqiqjf.preview.infomaniak.website/empdata_" + variablename + ".json"

You can also do it like this (a little more typesafe):

final let urlString = "https://ozsqiqjf.preview.infomaniak.website/empdata_\(variablename).json"

Swift will read \(variablename) into the string automatically and accepts - among all things - integers.

edited Oct 31, 2017 at 7:49

answered Oct 31, 2017 at 7:43

eFox

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Syrota Roman · Accepted Answer · 2017-10-31 08:00:08Z

-1

let variable = 123
final let urlString = "https://ozsqiqjf.preview.infomaniak.website/empdata_" + variable + ".json"

or

final let urlString = "https://ozsqiqjf.preview.infomaniak.website/empdata_\(variable).json"

answered Oct 31, 2017 at 8:00

Syrota Roman

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