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Legal Studies根據另一個數組修改陣列 JavaScript
假設我們有一個這樣的短語參考陣列 −
const reference = ["your", "majesty", "they", "are", "ready"];
我們要求根據另一個數組連線其中一些元素，因此，如果另一個數組是 −
const another = ["your", "they are"];
結果如下 −
result = ["your", "majesty", "they are", "ready"];
在此，我們比較了兩個陣列中的元素，如果元素在第二個陣列中同時存在，我們會連線第一個陣列的元素。
我們需要編寫一個接受兩個這樣的陣列並返回一個新的連線陣列的 JavaScript 函式。
示例
const reference = ["your", "majesty", "they", "are", "ready"];
const another = ["your", "they are"];
const joinByReference = (reference = [], another = []) => {
const res = [];
const filtered = another.filter(a => a.split(" ").length > 1);
while(filtered.length) {
let anoWords = filtered.shift();
let len = anoWords.split(" ").length;
while(reference.length>len) {
let refWords = reference.slice(0,len).join(" ");
if (refWords == anoWords) {
res.push(refWords);
reference = reference.slice(len,reference.length);
break;
};
res.push(reference.shift());
};
};
return [...res, ...reference];
};
console.log(joinByReference(reference, another));輸出
這將生成以下輸出 −
[ 'your', 'majesty', 'they are', 'ready' ]
更新日期: 25-Nov-2020
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