2. TypeScript 的排序实现 我们可以借助Array.sort()方法来对数组中的字符串进行排序。以下是一个简单的代码示例: functionsortStrings(arr:string[]):string[]{returnarr.sort((a,b)=>a.localeCompare(b));}// 示例constfruits:string[]=["banana","apple","orange","grape"];constsortedFruits:string[]=...
// For short (length <= 22) arrays, insertion sort is used for efficiency. if (!IS_CALLABLE(comparefn)) { comparefn = function (x, y) { if (x === y) return 0; if (%_IsSmi(x) && %_IsSmi(y)) { return %SmiLexicographicCompare(x, y); } x = TO_STRING(x); y = TO_ST...
sort array by date Typescript Now, let us see how to sort an array by date in Typescript. Here is an example of a Typescript sort array by date. let stringDates: string[] = ['2025-12-25', '2025-01-01', '2025-07-04']; let sortedDates = stringDates .map(date => new Date(...
.sort() function is a mutation function, it means it will mutate the original array by default. To prevent mutation: constarr: ReadonlyArray<string> = ['foo','bar'];constcopy = arr.slice().sort(); Here we use 'ReadonlyArray<T>' to tell Typescript, this is a readonly array of ...
TypeScript 有一种为类型声明新名称的方法,称为类型别名。如果你在编写一组函数,这些函数都使用string | number | boolean,你可以编写一个类型别名来避免反复重复。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 type BasicPrimitive=number|string|boolean; ...
function*uppercase(iter:Iterator<string, BuiltinIteratorReturn>) {while(true) {const{ value,done}=iter.next();yieldvalue.toUppercase();// ~~~ ~~~// error! ┃ ┃// ┃ ┗━ Property 'toUppercase' does not exist on type 'string'. Did you mean 'toUpperCase'?// ┃// ┗━ 'value' ...
sort(arr); expect(sort.getArray()).toStrictEqual(EXPECTED_SORTED_ARRAY); }); test('test by binary search', () => { let arr = TEST_ARRAY.slice(); let sort = new BinarySearchInsertionSort<number>(); sort.sort(arr); expect(sort.getArray()).toStrictEqual(EXPECTED_SORTED_ARRAY); })...
Typescript里的sort和C#差不多,但是略有不太一样,反正官方文档没说明白,就自己研究吧 list =list.sort((n1,n2) =>{if(n1 >n2) {return1; }if(n1 <n2) {return-1; }return0; }); 枚举取值还是很重要的 enum Color{ Red, Green }//To Stringvargreen: string =Color[Color.Green];//To Enum ...
When sorting an array of strings, TypeScript’s Array.sort() method uses string comparison internally: const fruits = ["banana", "apple", "cherry", "date"]; fruits.sort(); console.log(fruits); // ["apple", "banana", "cherry", "date"] ...
TypeScript now more accurately checks whether or not strings are assignable to the placeholder slots of a template string type. Copy functiona<Textends{id:string}>() {letx:`-${keyof T &string}`;// Used to error, now doesn't.x =...