javascript - 将文本 chop 为少于 280 个字符，然后将除 ","之外的每个单词少于 20 个字符

Question

这是我要改变的js

#tag1 #tag2 #thisisareallyreallyrealyylongtag3

进入

tag1, tag2, thisisareallyreallyrealyylongtag3

它还将结果 chop 为 13 个单词..

  var str9 = document.getElementById("hashtagsplain").innerHTML;
  var resu9 = str9.replace(/^#|( #)/g, (_, m1) => m1 ? ", " : '');  
  var truncatethen = resu9.split(" ").splice(0,13).join(" ").slice(0, -1);
document.getElementById("x").innerHTML = truncatethen;

我现在需要添加的是将整个文本 chop 为少于 280 个字符，然后将每个单词(标签)的末尾(不包括“,”) chop 为少于 20 个字符。

我需要添加什么以及在哪里才能发生这种情况？

更新..

我通过添加解决了 280 个字符的限制部分

(/^(.{280}[^\s]*).*/, "$1")

现在我的代码看起来像这样..

  var str9 = document.getElementById("hashtagsplain").innerHTML;
  var resu9 = str9.replace(/^#|( #)/g, (_, m1) => m1 ? ", " : '');  
  var resu10 = resu9.replace(/^(.{280}[^\s]*).*/, "$1");    
  var truncatethen = resu10.split(" ").splice(0,13).join(" ").slice(0, -1);
document.getElementById("x").innerHTML = truncatethen;

我现在需要弄清楚如何将除“,”之外的每个单词 chop 为少于 20 个字符

notalldisabilitiesarevisible, notalldisabilitiesarevisable, notalldisabilities

变成了

notalldisabilitiesar, notalldisabilitiesar, notalldisabilities

Answer 1

slice和 map可以简化流程

var str9 = '#tag1 #tag2 #thisisareallyreallyrealyylongtag3 #notalldisabilitiesarevisible #notalldisabilitiesar #notalldisabilitiesar #notalldisabilities #tag1 #tag2 #thisisareallyreallyrealyylongtag3 #notalldisabilitiesarevisible #notalldisabilitiesar #notalldisabilitiesar #notalldisabilities #tag1 #tag2 #thisisareallyreallyrealyylongtag3 #notalldisabilitiesarevisible #notalldisabilitiesar #notalldisabilitiesar #notalldisabilities'

const textLength = 280;
const wordLength = 20;

var resu9 = str9.slice(1, textLength+1).replace(/#/g, ',');  
var truncatethen = resu9.split(',').map(str => str.slice(0, wordLength));    
truncatethen.forEach(str => console.log(str))