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VBScript Asc function

May 13, 2021 VBScript

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1. VBScript Asc function

VBScript Asc function

The VBScript Asc function returns the ANSI character code for the initials of the string.

VBScript Asc function

Complete VBScript reference manual

The Asc function converts the first letter in the string to the corresponding ANSI code and returns the result.

Grammar

Asc(string)

Parameters

parameter	describe
string	Required.String expressions.Can't be empty strings!

Instance 1

<script type="text/vbscript">

document.write(Asc("A") & "<br />")
document.write(Asc("a") & "<br />")
document.write(Asc("F") & "<br />")
document.write(Asc("f") & "<br />")
document.write(Asc("2") & "<br />")
document.write(Asc("#") & "<br />")

</script>

The above example output results:

65
97
70
102
50
35

Try it out . . .

Instance 2

Asc returns the ANSI code for the first character in the string:

<script type="text/vbscript">

document.write(Asc("W") & "<br />")
document.write(Asc("W3CSchool.com"))

</script>

The above example output results:

87
87

Try it out . . .

Instance 3

How to return an ANSI code for all characters in a string:

<script type="text/vbscript">

txt="W3Cschools.com"
for i=1 to len(txt)
document.write(Asc(mid(txt,i,1)) & "<br />")
next

</script>

The above example output results:

87
51
115
99
104
111
111
108
115
46
99
111
109

Try it out . . .

VBScript Asc function

Complete VBScript reference manual