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String - startsWith/substring/indexOf

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This commit is contained in:
Lachezar Lechev
2018-06-25 21:30:04 +02:00
parent 09cf02d41a
commit 36e79d23c4
2 changed files with 136 additions and 5 deletions
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32
src/js.rs
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@@ -341,6 +341,21 @@ extern {
#[wasm_bindgen(js_name = JsString)]
pub type JsString;
/// 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.
///
/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charAt
#[wasm_bindgen(method, js_class = "String", js_name = charAt)]
pub fn char_at(this: &JsString, index: u32) -> JsString;
/// 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.
///
/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/indexOf
#[wasm_bindgen(method, js_class = "String", js_name = indexOf)]
pub fn index_of(this: &JsString, search_value: &JsString, from_index: i32) -> i32;
/// The slice() method extracts a section of a string and returns it as a
/// new string, without modifying the original string.
///
@@ -348,12 +363,19 @@ extern {
#[wasm_bindgen(method, js_class = "String")]
pub fn slice(this: &JsString, start: u32, end: u32) -> JsString;
/// 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.
/// The startsWith() method determines whether a string begins with the characters
/// of a specified string, returning true or false as appropriate.
///
/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charAt
#[wasm_bindgen(method, js_class = "String", js_name = charAt)]
pub fn char_at(this: &JsString, index: u32) -> JsString;
/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
#[wasm_bindgen(method, js_class = "String", js_name = startsWith)]
pub fn starts_with(this: &JsString, search_string: &JsString, position: u32) -> bool;
/// The substring() method returns the part of the string between the start and end indexes,
/// or to the end of the string.
///
/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substring
#[wasm_bindgen(method, js_class = "String")]
pub fn substring(this: &JsString, index_start: u32, index_end: u32) -> JsString;
}
impl<'a> From<&'a str> for JsString {