javascript – JS – 收集一个字符之间的所有字母(:)

我希望根据节点中的注释将某些单词转换为图标.

我需要转换一个字符串,如：

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

进入一个像js数组：

[ 9044,456 ]

我在线尝试了各种正则表达方式,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' ]

解决方法

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);