javascript 数组的过滤器数组(子串)

e5nqia27 于 11个月前发布在 Java

关注(0)|答案(2)|浏览(141)

我有一个数组的数组，我想只显示从搜索栏的子字符串数组。
我的代码：
在第一部分（不显示）我从搜索栏中获取值，并在之前有一个空格（如果没有写入，则查看所有数组）

const Arrays = [
 [
  { text: " first ", image: "1.jpg", },
  " hello"," world"," ",
],
[
  {text: " second",image: "https://www.wikipedia.org/portal/wikipedia.org/assets/img/Wikipedia-logo-v2.png",},
  " goodbye"," world"," ",
],
[
  { text: " Salut", image: "bass.jpg", },
  " Ca va"," au revoir"," ",
],
];

const showArrays = Arrays.filter(function(array) {return array.includes(searchimp) })

字符串
这是我的过滤器函数，它的工作，只有当searchchimp是完全相同的元素从一个子数组
与searchchimp我的const从搜索栏。
最后，我有一个函数（不是show）来显示“showArrays”，并格式化每个数组中的第一个元素以显示图片，
它运行，当我写“goodbye”时，它返回第二个数组，但当我写“goo”时，它没有返回任何东西。

JavaScript

来源：https://stackoverflow.com/questions/77747506/filter-array-of-array-substring

2条答案

按热度按时间

fnvucqvd1#

要搜索子字符串，可以使用indexOf方法。
要绕过嵌套数组，最好使用some方法

const Arrays = [
  [
    { text: " first ", image: "1.jpg", },
    " hello"," world"," ",
  ],
  [
    {text: " second",image: "https://www.wikipedia.org/portal/wikipedia.org/assets/img/Wikipedia-logo-v2.png",},
    " goodbye"," world"," ",
  ],
  [
    { text: " Salut", image: "bass.jpg", },
    " Ca va"," au revoir"," ",
  ],
];
const searchimp = prompt('What find? ')
const showArrays = Arrays.filter(function (array) {
  return array.some(el => { // iterate
    if (typeof el === 'string') { // search in string
      return el.indexOf(searchimp) > -1; // if find, return true and stop iterate
    }
    return false;
  })
})

console.log(showArrays);

字符串
单行记录

const showArrays = Arrays.filter(ar => ar.some(el => typeof el === 'string' ? el.indexOf(searchimp) > -1 : false))

型

赞(0）回复(0）举报 11个月前

vzgqcmou2#

使用Array.some()查找是否存在匹配。使用String::includes()进行匹配：

const Arrays = [
 [
  { text: " first ", image: "1.jpg", },
  " hello"," world"," ",
],
[
  {text: " second",image: "https://www.wikipedia.org/portal/wikipedia.org/assets/img/Wikipedia-logo-v2.png",},
  " goodbye"," world"," ",
],
[
  { text: " Salut", image: "bass.jpg", },
  " Ca va"," au revoir"," ",
],
];

const searchimp = 'goo';
const showArrays = Arrays.filter(arr => arr.some(elem => typeof elem === 'string' && elem.includes(searchimp)));

console.log(showArrays);

字符串

赞(0）回复(0）举报 11个月前

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javascript 数组的过滤器数组(子串)

2条答案

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