如何使用 Javascript 刪除所有換行符和制表符實例

Question

我正在抓取一個網站，需要從我的字符串中刪除所有 /n 和 /t。

我嘗試了以下代碼：

item.post_category = [];
 Array.from($doc.find('h6.link')).forEach(function(link){ 
            console.log(link.textContent.replace(/\t+\n+/gm, ""));        
            item.post_category.push(link.textContent);
          })
//this removes the linebreaks but not the tabs

這是我必須迭代的多個示例數組：

["\n\t\t\t\t\tJune 15, 2021 • \n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\tFamily,\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\tGender Equality,\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\tIn the News\n\t\t\t\t"]

["\n\t\t\t\t\tJune 13, 2020 • \n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\tIn the News\n\t\t\t\t"]

["\n\t\t\t\t\tJuly 5, 2021 • \n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\tNews\n\t\t\t\t"]

理想情況下，我希望我的 arrays 看起來像這樣。 刪除日期和\n 和\t。

["Family,Gender Equality,In the News"]
["In the News"]
["News"]

Answer 1

有數百種方法可以做到這一點，您可以根據需要使用正則表達式或拆分。

這是可能的解決方案之一：

let str = "\n\t\t\t\t\tJune 15, 2021 • \n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\tFamily,\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\tGender Equality,\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\tIn the News\n\t\t\t\t"

// Remove all new lines and tabs with a regex. You could also add '\r\n' if necessary.
str = str.replace(/(\n|\t)/gm, '');

// Here we assume that your string will 
// always contain the date followed by this character: •. 
// So we split according to this character, and we select 
// the second item of the table, which corresponds to the text without the date.
let result = str.split('•')[1].trim()

console.log(result) // prints 'Family,Gender Equality,In the News'