[−][src]Struct node_sys::Platform
Methods from Deref<Target = JsString>
pub fn is_valid_utf16(&self) -> bool
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Returns whether this string is a valid UTF-16 string.
This is useful for learning whether String::from(..)
will return a
lossless representation of the JS string. If this string contains
unpaired surrogates then String::from
will succeed but it will be a
lossy representation of the JS string because unpaired surrogates will
become replacement characters.
If this function returns false
then to get a lossless representation
of the string you'll need to manually use the iter
method (or the
char_code_at
accessor) to view the raw character codes.
For more information, see the documentation on JS strings vs Rust strings
pub fn iter(&'a self) -> impl DoubleEndedIterator + ExactSizeIterator + 'a
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Returns an iterator over the u16
character codes that make up this JS
string.
This method will call char_code_at
for each code in this JS string,
returning an iterator of the codes in sequence.
pub fn as_char(&self) -> Option<char>
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If this string consists of a single Unicode code point, then this method
converts it into a Rust char
without doing any allocations.
If this JS value is not a valid UTF-8 or consists of more than a single
codepoint, then this returns None
.
Note that a single Unicode code point might be represented as more than
one code unit on the JavaScript side. For example, a JavaScript string
"\uD801\uDC37"
is actually a single Unicode code point U+10437 which
corresponds to a character '𐐷'.
pub fn length(&self) -> u32
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The length property of a String object indicates the length of a string, in UTF-16 code units.
pub fn char_at(&self, index: u32) -> JsString
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The String object's charAt()
method returns a new string consisting of
the single UTF-16 code unit located at the specified offset into the
string.
pub fn char_code_at(&self, index: u32) -> f64
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The charCodeAt()
method returns an integer between 0 and 65535
representing the UTF-16 code unit at the given index (the UTF-16 code
unit matches the Unicode code point for code points representable in a
single UTF-16 code unit, but might also be the first code unit of a
surrogate pair for code points not representable in a single UTF-16 code
unit, e.g. Unicode code points > 0x10000). If you want the entire code
point value, use codePointAt()
.
Returns NaN
if index is out of range.
pub fn code_point_at(&self, pos: u32) -> JsValue
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The codePointAt()
method returns a non-negative integer that is the
Unicode code point value.
pub fn concat(&self, string_2: &JsValue) -> JsString
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The concat()
method concatenates the string arguments to the calling
string and returns a new string.
pub fn ends_with(&self, search_string: &str, length: i32) -> bool
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The endsWith()
method determines whether a string ends with the characters of a
specified string, returning true or false as appropriate.
pub fn includes(&self, search_string: &str, position: i32) -> bool
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The includes()
method determines whether one string may be found
within another string, returning true or false as appropriate.
pub fn index_of(&self, search_value: &str, from_index: i32) -> i32
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The indexOf()
method returns the index within the calling String
object of the first occurrence of the specified value, starting the
search at fromIndex. Returns -1 if the value is not found.
pub fn last_index_of(&self, search_value: &str, from_index: i32) -> i32
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The lastIndexOf()
method returns the index within the calling String
object of the last occurrence of the specified value, searching
backwards from fromIndex. Returns -1 if the value is not found.
pub fn locale_compare(
&self,
compare_string: &str,
locales: &Array,
options: &Object
) -> i32
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&self,
compare_string: &str,
locales: &Array,
options: &Object
) -> i32
The localeCompare()
method returns a number indicating whether
a reference string comes before or after or is the same as
the given string in sort order.
pub fn match_(&self, pattern: &RegExp) -> Option<Object>
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The match()
method retrieves the matches when matching a string against a regular expression.
pub fn normalize(&self, form: &str) -> JsString
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The normalize()
method returns the Unicode Normalization Form
of a given string (if the value isn't a string, it will be converted to one first).
pub fn pad_end(&self, target_length: u32, pad_string: &str) -> JsString
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The padEnd()
method pads the current string with a given string
(repeated, if needed) so that the resulting string reaches a given
length. The padding is applied from the end (right) of the current
string.
pub fn pad_start(&self, target_length: u32, pad_string: &str) -> JsString
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The padStart()
method pads the current string with another string
(repeated, if needed) so that the resulting string reaches the given
length. The padding is applied from the start (left) of the current
string.
pub fn repeat(&self, count: i32) -> JsString
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The repeat()
method constructs and returns a new string which contains the specified
number of copies of the string on which it was called, concatenated together.
pub fn replace(&self, pattern: &str, replacement: &str) -> JsString
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The replace()
method returns a new string with some or all matches of a pattern
replaced by a replacement. The pattern can be a string or a RegExp, and
the replacement can be a string or a function to be called for each match.
Note: The original string will remain unchanged.
pub fn replace_with_function(
&self,
pattern: &str,
replacement: &Function
) -> JsString
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&self,
pattern: &str,
replacement: &Function
) -> JsString
pub fn replace_by_pattern(
&self,
pattern: &RegExp,
replacement: &str
) -> JsString
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&self,
pattern: &RegExp,
replacement: &str
) -> JsString
pub fn replace_by_pattern_with_function(
&self,
pattern: &RegExp,
replacement: &Function
) -> JsString
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&self,
pattern: &RegExp,
replacement: &Function
) -> JsString
pub fn search(&self, pattern: &RegExp) -> i32
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The search()
method executes a search for a match between
a regular expression and this String object.
pub fn slice(&self, start: u32, end: u32) -> JsString
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The slice()
method extracts a section of a string and returns it as a
new string, without modifying the original string.
pub fn split(&self, separator: &str) -> Array
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The split()
method splits a String object into an array of strings by separating the string
into substrings, using a specified separator string to determine where to make each split.
pub fn split_limit(&self, separator: &str, limit: u32) -> Array
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pub fn split_by_pattern(&self, pattern: &RegExp) -> Array
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pub fn split_by_pattern_limit(&self, pattern: &RegExp, limit: u32) -> Array
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pub fn starts_with(&self, search_string: &str, position: u32) -> bool
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The startsWith()
method determines whether a string begins with the
characters of a specified string, returning true or false as
appropriate.
pub fn substring(&self, index_start: u32, index_end: u32) -> JsString
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The substring()
method returns the part of the string between the
start and end indexes, or to the end of the string.
pub fn substr(&self, start: i32, length: i32) -> JsString
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The substr()
method returns the part of a string between
the start index and a number of characters after it.
pub fn to_locale_lower_case(&self, locale: Option<&str>) -> JsString
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The toLocaleLowerCase()
method returns the calling string value converted to lower case,
according to any locale-specific case mappings.
pub fn to_locale_upper_case(&self, locale: Option<&str>) -> JsString
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The toLocaleUpperCase()
method returns the calling string value converted to upper case,
according to any locale-specific case mappings.
pub fn to_lower_case(&self) -> JsString
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The toLowerCase()
method returns the calling string value
converted to lower case.
pub fn to_string(&self) -> JsString
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The toString()
method returns a string representing the specified
object.
pub fn to_upper_case(&self) -> JsString
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The toUpperCase()
method returns the calling string value converted to
uppercase (the value will be converted to a string if it isn't one).
pub fn trim(&self) -> JsString
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The trim()
method removes whitespace from both ends of a string.
Whitespace in this context is all the whitespace characters (space, tab,
no-break space, etc.) and all the line terminator characters (LF, CR,
etc.).
pub fn trim_end(&self) -> JsString
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The trimEnd()
method removes whitespace from the end of a string.
trimRight()
is an alias of this method.
pub fn trim_right(&self) -> JsString
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The trimEnd()
method removes whitespace from the end of a string.
trimRight()
is an alias of this method.
pub fn trim_start(&self) -> JsString
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The trimStart()
method removes whitespace from the beginning of a
string. trimLeft()
is an alias of this method.
pub fn trim_left(&self) -> JsString
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The trimStart()
method removes whitespace from the beginning of a
string. trimLeft()
is an alias of this method.
pub fn value_of(&self) -> JsString
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The valueOf()
method returns the primitive value of a String
object.
Trait Implementations
impl AsRef<JsString> for Platform
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impl AsRef<JsValue> for Platform
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impl AsRef<Platform> for Platform
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impl Deref for Platform
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impl From<JsValue> for Platform
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impl From<Platform> for JsValue
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impl From<Platform> for JsString
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impl FromWasmAbi for Platform
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type Abi = <JsValue as FromWasmAbi>::Abi
The wasm ABI type that this converts from when coming back out from the ABI boundary. Read more
unsafe fn from_abi(js: Self::Abi) -> Self
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impl IntoWasmAbi for Platform
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type Abi = <JsValue as IntoWasmAbi>::Abi
The wasm ABI type that this converts into when crossing the ABI boundary. Read more
fn into_abi(self) -> Self::Abi
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impl<'a> IntoWasmAbi for &'a Platform
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type Abi = <&'a JsValue as IntoWasmAbi>::Abi
The wasm ABI type that this converts into when crossing the ABI boundary. Read more
fn into_abi(self) -> Self::Abi
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impl JsCast for Platform
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fn instanceof(val: &JsValue) -> bool
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fn unchecked_from_js(val: JsValue) -> Self
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fn unchecked_from_js_ref(val: &JsValue) -> &Self
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fn has_type<T>(&self) -> bool where
T: JsCast,
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T: JsCast,
fn dyn_into<T>(self) -> Result<T, Self> where
T: JsCast,
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T: JsCast,
fn dyn_ref<T>(&self) -> Option<&T> where
T: JsCast,
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T: JsCast,
fn unchecked_into<T>(self) -> T where
T: JsCast,
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T: JsCast,
fn unchecked_ref<T>(&self) -> &T where
T: JsCast,
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T: JsCast,
fn is_instance_of<T>(&self) -> bool where
T: JsCast,
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T: JsCast,
fn is_type_of(val: &JsValue) -> bool
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impl OptionFromWasmAbi for Platform
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impl OptionIntoWasmAbi for Platform
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impl<'a> OptionIntoWasmAbi for &'a Platform
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impl RefFromWasmAbi for Platform
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type Abi = <JsValue as RefFromWasmAbi>::Abi
The wasm ABI type references to Self
are recovered from.
type Anchor = ManuallyDrop<Platform>
The type that holds the reference to Self
for the duration of the invocation of the function that has an &Self
parameter. This is required to ensure that the lifetimes don't persist beyond one function call, and so that they remain anonymous. Read more
unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor
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impl WasmDescribe for Platform
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Auto Trait Implementations
impl RefUnwindSafe for Platform
impl !Send for Platform
impl !Sync for Platform
impl Unpin for Platform
impl UnwindSafe for Platform
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ReturnWasmAbi for T where
T: IntoWasmAbi,
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T: IntoWasmAbi,
type Abi = <T as IntoWasmAbi>::Abi
Same as IntoWasmAbi::Abi
fn return_abi(self) -> <T as ReturnWasmAbi>::Abi
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,