diff --git a/docs/uts/buildin-object-api/array.md b/docs/uts/buildin-object-api/array.md index b8dc1ea143ad7b3db954b0e213942e613aae3881..d3d820c7aff6919d54955637730829b78ce867a4 100644 --- a/docs/uts/buildin-object-api/array.md +++ b/docs/uts/buildin-object-api/array.md @@ -167,15 +167,7 @@ let arr = new Array(10) -```ts -const array1 = [5, 12, 8, 130, 44]; - -const isLargeNumber = (element:number):boolean => element > 13; - -console.log(array1.findIndex(isLargeNumber)); -// expected output: 3 - -``` + @@ -215,21 +207,7 @@ console.log(array1.findIndex(isLargeNumber)); -```ts -const array1 = [1, 2, 3, 4]; - -// fill with 0 from position 2 until position 4 -console.log(array1.fill(0, 2, 4)); -// expected output: [1, 2, 0, 0] - -// fill with 5 from position 1 -console.log(array1.fill(5, 1)); -// expected output: [1, 5, 5, 5] - -console.log(array1.fill(6)); -// expected output: [6, 6, 6, 6] - -``` + 需要注意的是,截止HBuilder 4.22 部分平台尚不支持[根据元素个数构造`Array`的写法](https://doc.dcloud.net.cn/uni-app-x/uts/buildin-object-api/array.html#constructor) @@ -259,15 +237,7 @@ for(let i = 0; i < 20; i++){ -```ts -const array1 = ['a', 'b', 'c', 'd', 'e']; -// copy to index 0 the element at index 3 -console.log(array1.copyWithin(0, 3, 4)); -// expected output: Array ["d", "b", "c", "d", "e"] -// copy to index 1 all elements from index 3 to the end -console.log(array1.copyWithin(1, 3)); -// expected output: Array ["d", "d", "e", "d", "e"] -``` + @@ -279,21 +249,7 @@ console.log(array1.copyWithin(1, 3)); -```ts -const plants = ['broccoli', 'cauliflower', 'cabbage', 'kale', 'tomato']; - -console.log(plants.pop()); -// expected output: "tomato" - -console.log(plants); -// expected output: Array ["broccoli", "cauliflower", "cabbage", "kale"] - -plants.pop(); - -console.log(plants); -// expected output: Array ["broccoli", "cauliflower", "cabbage"] - -``` + @@ -305,20 +261,7 @@ console.log(plants); -```ts -const animals = ['pigs', 'goats', 'sheep']; - -const count = animals.push('cows'); -console.log(count); -// expected output: 4 -console.log(animals); -// expected output: Array ["pigs", "goats", "sheep", "cows"] - -animals.push('chickens', 'cats', 'dogs'); -console.log(animals); -// expected output: Array ["pigs", "goats", "sheep", "cows", "chickens", "cats", "dogs"] - -``` + @@ -330,13 +273,7 @@ console.log(animals); -```ts -const array1 = ['a', 'b', 'c']; -const array2 = ['d', 'e', 'f']; -const array3 = array1.concat(array2); -console.log(array3); -// expected output: Array ["a", "b", "c", "d", "e", "f"] -``` + @@ -348,6 +285,8 @@ console.log(array3); + + ### join(separator?) @@ -358,19 +297,7 @@ console.log(array3); -```ts -const elements = ['Fire', 'Air', 'Water']; - -console.log(elements.join()); -// expected output: "Fire,Air,Water" - -console.log(elements.join('')); -// expected output: "FireAirWater" - -console.log(elements.join('-')); -// expected output: "Fire-Air-Water" - -``` + @@ -392,18 +319,7 @@ console.log(elements.join('-')); -```ts -const array1 = [1, 2, 3]; - -const firstElement = array1.shift(); - -console.log(array1); -// expected output: Array [2, 3] - -console.log(firstElement); -// expected output: 1 - -``` + @@ -415,27 +331,7 @@ console.log(firstElement); -```ts -const animals = ['ant', 'bison', 'camel', 'duck', 'elephant']; - -console.log(animals.slice(2)); -// expected output: Array ["camel", "duck", "elephant"] - -console.log(animals.slice(2, 4)); -// expected output: Array ["camel", "duck"] - -console.log(animals.slice(1, 5)); -// expected output: Array ["bison", "camel", "duck", "elephant"] - -console.log(animals.slice(-2)); -// expected output: Array ["duck", "elephant"] - -console.log(animals.slice(2, -1)); -// expected output: Array ["camel", "duck"] - -console.log(animals.slice()); -// expected output: Array ["ant", "bison", "camel", "duck", "elephant"] -``` + @@ -447,11 +343,7 @@ console.log(animals.slice()); -```ts -const array2 = [5, 1, 4, 2, 3]; -array2.sort((a: number, b: number):number => a - b); -// expect(array2).toEqual([1, 2, 3, 4, 5]); -``` + @@ -479,18 +371,7 @@ a.sort((a, b) : number => { -```ts -const months = ['Jan', 'March', 'April', 'June']; -months.splice(1, 0, 'Feb'); -// inserts at index 1 -console.log(months); -// expected output: Array ["Jan", "Feb", "March", "April", "June"] - -months.splice(4, 1, 'May'); -// replaces 1 element at index 4 -console.log(months); -// expected output: Array ["Jan", "Feb", "March", "April", "May"] -``` +