<![CDATA[How to get numbers from strings]]>I have a function that iterate over strings like

 strings = ["brass", "001", "127", "flute"]

How can I find the string numbers from this array?
I have tried "typeof", of course that's not going to work, eval(), etc....
I even tried to let all strings pass

Engine.getMidiNoteName(string)

and it log "0" for all letter strings but it works for the "number" strings
How do you do it?

]]>https://forum.hise.audio/topic/14363/how-to-get-numbers-from-stringsRSS for NodeWed, 22 Apr 2026 01:27:17 GMTThu, 05 Feb 2026 10:12:20 GMT60<![CDATA[Reply to How to get numbers from strings on Tue, 10 Feb 2026 05:31:32 GMT]]>@dannytaurus @Oli-Ullmann @ustk thank you all for the help, all your suggestions work great!

]]>https://forum.hise.audio/post/117586https://forum.hise.audio/post/117586Tue, 10 Feb 2026 05:31:32 GMT<![CDATA[Reply to How to get numbers from strings on Thu, 05 Feb 2026 12:07:59 GMT]]>@ulrik are you parsing dodgy data from somewhere?? Because grouping numbers and text strings like that into a single array seems like a poor design.

]]>https://forum.hise.audio/post/117488https://forum.hise.audio/post/117488Thu, 05 Feb 2026 12:07:59 GMT<![CDATA[Reply to How to get numbers from strings on Thu, 05 Feb 2026 11:36:27 GMT]]>@ulrik said in How to get numbers from strings:

How can I find the string numbers from this array?

How did the numbers get into the array as strings?

]]>https://forum.hise.audio/post/117484https://forum.hise.audio/post/117484Thu, 05 Feb 2026 11:36:27 GMT<![CDATA[Reply to How to get numbers from strings on Thu, 05 Feb 2026 11:23:47 GMT]]>@ulrik Or use regex to detect strings that only contains digits.

const var strings = ["brass", "001", "127", "flute"];

for (s in strings)
{
  if (Engine.matchesRegex(s, "^\\d+$")) Console.print(parseInt(s));
}

^ means 'start of string'
\\d means digit
+ means 'one or more'
$ means 'end of string`

So, "one or more digits between the start and end of the string, and nothing else"

]]>https://forum.hise.audio/post/117478https://forum.hise.audio/post/117478Thu, 05 Feb 2026 11:23:47 GMT<![CDATA[Reply to How to get numbers from strings on Thu, 05 Feb 2026 11:09:13 GMT]]>Use parseInt. But you need to check the charcode of the first character to get rid of letter parsing returning 0

const var strings = ["brass", "001", "127", "flute"];

for (s in strings)
{
	if (s.charCodeAt(0) >= 48 && s.charCodeAt(0) <= 57) // <= 0-9 numbers only
		Console.print(parseInt(s));
}

As @Oli-Ullmann said String.getIntValue() also works, I don't know if there's any difference between the two...

]]>https://forum.hise.audio/post/117475https://forum.hise.audio/post/117475Thu, 05 Feb 2026 11:09:13 GMT<![CDATA[Reply to How to get numbers from strings on Thu, 05 Feb 2026 10:22:07 GMT]]>@ulrik
I'm not sure I fully understand your question, but there is String.getIntValue(). This function converts a string into an integer.

And there is Engine.getValueForText(String text, String convertedMode).

]]>https://forum.hise.audio/post/117473https://forum.hise.audio/post/117473Thu, 05 Feb 2026 10:22:07 GMT