startswith

startswith(string, prefix | chars)

Returns true if string starts with prefix. If the second argument is a vector or set of characters, tests whether the first character of string belongs to that set.

Examples

julia> startswith("Julia Programming", "Julia")
true

julia> startswith("Julia Programming", "Programming")
false

julia> startswith("Julia Programming", 'J')
true

julia> startswith("Julia Programming", ['J', 'P', 'Q'])
true

Check if a string starts with a specific prefix:
```
julia> startswith("Hello World", "Hello")
true
```
This example returns true because the string "Hello World" starts with the prefix "Hello".
Check if a character is the first character of a string:
```
julia> startswith("Julia", 'J')
true
```
It returns true because the character 'J' is the first character of the string "Julia".
Check if the first character of a string belongs to a set of characters:
```
julia> startswith("Julia", ['J', 'P', 'Q'])
true
```
In this example, it returns true because the first character of the string "Julia" (which is 'J') belongs to the set of characters ['J', 'P', 'Q'].

Common mistake example:

julia> startswith("Julia", "Jul")
false

In this example, the provided prefix is "Jul", but the string "Julia" does not start with that exact prefix. Ensure that the prefix matches the starting characters of the string accurately to get the desired result.

ascii, base64decode, Base64DecodePipe, base64encode, Base64EncodePipe, bin, bits, bytestring, charwidth, chomp, chop, chr2ind, contains, endswith, escape_string, graphemes, ind2chr, iscntrl, istext, isupper, isvalid, join, lcfirst, lowercase, lpad, lstrip, normalize_string, num2hex, parseip, randstring, readuntil, replace, repr, rpad, rsplit, rstrip, search, searchindex, split, startswith, string, stringmime, strip, strwidth, summary, takebuf_string, ucfirst, unescape_string, uppercase, utf16, utf32, utf8, wstring,

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startswith

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