如何获得Javascript正则表达式匹配的字符串的实际值？

Question

我想写一个JavaScript函数，将采取字符串<0>（其中0真的可以是任意数字），在它和删除它，得到它的数量的实际值。例如，如果它被赋予了这样一句话：

'By now you\'re probably familiar with <0>X, a drawing application that has won an <1>Awards and plenty of attention for its user interface, which has rethought the way basic interactions like <2>pinch-to-zoom or <3>color selection should work on a touchscreen.' 

我希望它给我回这个字符串：

'By now you\'re probably familiar with X, a drawing application that has won an Awards and plenty of attention for its user interface, which has rethought the way basic interactions like pinch-to-zoom or color selection should work on a touchscreen.' 

这阵：

[0, 1, 2, 3] 

目前我有这样的：

function(sentence) { 
    return sentence.split(/\<[0-9]+\>/).join(''); 
} 

显然刚刚返回这句话。我需要在标签内有数字值。有没有办法做到这一点？

Answer 1

我建议：

function regexAndArray (str) { 
    var reg = /(<(\d+)>)/g, 
     results = { 
      string : '', 
      stripped : [] 
     }; 
    results.string = str.replace(reg, function(a,b,c){ 
     results.stripped.push(c); 
     return ''; 
    }); 
    return results; 
} 

console.log(regexAndArray('By now you\'re probably familiar with <0>X, a drawing application that has won an <1>Awards and plenty of attention for its user interface, which has rethought the way basic interactions like <2>pinch-to-zoom or <3>color selection should work on a touchscreen.')); 

JS Fiddle demo。

参考文献：

• Array.push()。
• JavaScript regular expressions。
• String.replace()。