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Extracts a string slice containing the entire String
.
Basic usage:
let s = String::from("foo");
assert_eq!("foo", s.as_str());
Returns this String
's capacity, in bytes.
Basic usage:
let s = String::with_capacity(10);
assert!(s.capacity() >= 10);
Returns a byte slice of this String
's contents.
The inverse of this method is from_utf8
.
Basic usage:
let s = String::from("hello");
assert_eq!(&[104, 101, 108, 108, 111], s.as_bytes());
Returns the length of this String
, in bytes.
Basic usage:
let a = String::from("foo");
assert_eq!(a.len(), 3);
Returns true
if this String
has a length of zero.
Returns false
otherwise.
Basic usage:
let mut v = String::new();
assert!(v.is_empty());
v.push('a');
assert!(!v.is_empty());
Performs copy-assignment from source
. Read more
Formats the value using the given formatter. Read more
Formats the value using the given formatter. Read more
The resulting type after dereferencing.
The associated error which can be returned from parsing.
Parses a string s
to return a value of this type. Read more
Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String
. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static