如何使用 javascript 从文本中删除基于冒号的表情符号答案

【问题标题】：How to remove colon based emojis from text using javascript如何使用 javascript 从文本中删除基于冒号的表情符号
【发布时间】：2018-09-22 00:40:18
【问题描述】：

如何使用 javascript 从字符串中删除 :smile: style emjois 的所有实例？下面是我在 JSON 中获得的一个示例，其中包含 :point_right:。我很想从一个字符串中删除所有这些。

[ { service_name: 'Instagram',
   title: 'Instagram: “:point_right: Real people, making real products from real plants, using their actual hands to put them in boxes that show up on your doorstep.…”',
   text: '36 Likes, 2 Comments - “:point_right: Real people, making real products',
  ts: '1523497358.000299' }

【问题讨论】：

标签： javascript json regex string emoji

【解决方案1】：

试试这个：

// JSON Object
var jsonObj = [{
	"service_name": "Instagram",
	"title": "Instagram: “:point_right: Real people, making real products from real plants, using their actual hands to put them in boxes that show up on your doorstep.…”",
	"text": "36 Likes, 2 Comments - “:point_right: Real people, making real products",
	"ts": "1523497358.000299"
}];

// Replace :point_right: with blank string.
jsonObj.map(obj => {
  obj.title = obj.title.replace(":point_right: ", "");
  obj.text = obj.text.replace(":point_right: ", "");
  return obj;
});

// Output
console.log(jsonObj);

【讨论】：

【解决方案2】：

从这个答案Replacing values in JSON object 你可以这样做：

var json=[ { service_name: 'Instagram',
   title: 'Instagram: “:point_right: Real people, making real products from real plants, using their actual hands to put them in boxes that show up on your doorstep.…”',
   text: '36 Likes, 2 Comments - “:point_right: Real people, making real products',
  ts: '1523497358.000299' }];

var rep = JSON.stringify(json).replace(/(“)(:[^:]+:)/g, '$1'); 
var New = JSON.parse(rep); 
console.log(New);

【讨论】：

【解决方案3】：

假设表情符号都是一个单词，在:s 之间：

const obj = {
  service_name: 'Instagram',
  title: 'Instagram: “:point_right: Real people, making real products from real plants, using their actual hands to put them in boxes that show up on your doorstep.…”',
  text: '36 Likes, 2 Comments - “:point_right: Real people, making real products',
  ts: '1523497358.000299'
}

obj.title = obj.title.replace(/:[^ ]+:/g, '');
obj.text = obj.text.replace(/:[^ ]+:/g, '');
console.log(obj);

【讨论】：

【解决方案4】：

只需将String.prototype.replace() 与正则表达式一起使用：

const input = 'Instagram: “:point_right: Real people, making real products from real plants, using their actual hands to put them in boxes that show up on your doorstep.…”';

const output = input.replace(/:\w+:/g, '');

console.log(output);

【讨论】：