javascript - JS - 收集字符之间的所有字母(:)

Question

我希望根据节点中的评论将某些单词转换为图标。

我需要像这样转换一个字符串:

This is my fav item :9044: and :456:

进入一个 js 数组，如:

[ 9044, 456 ]

我在网上尝试了各种 Regex 方法，但都没有产生正确的输出。

以前失败的尝试:

--------------------

var comment = 'This is my fav item :9044: and :456:';
comment.substring(comment.lastIndexOf(":")+1,comment.lastIndexOf(":"));

// ':'

--------------------

var comment = 'This is my fav item :9044: and :456:';
comment.match(":(.*):");

// [ ':9044: and :456:', '9044: and :456' ]

--------------------

var comment = 'This is my fav item :9044: and :456:';
comment.match(/:([^:]+):/);

// [ ':9044:', '9044' ]

Answer 1

您可以使用regex.exec

var input = 'This is my fav item :9044: and :456: and another match :abc:';

let regex = /:(\w+):/g;
let results = [];
let number;

while(number = regex.exec(input)) {
  results.push(number[1]);
}
 
console.log(results);

regex = /:\w+:/g;
results = input.match(regex).map(num => num.replace(/:/g, ''));
 
console.log(results);

// And it you want to cast numbers
results = input.match(regex).map(num => {
   num = num.replace(/:/g, '');
   return Number.isNaN(+num) ? num : +num;
});
 
console.log(results);