JavaScript的多个同时更换

Question

什么是JS来一次替换字符串多件事情最简单的方法（互不干扰）？像

"tar pit".replaceArray(['tar', 'pit'], ['capitol', 'house']); 

...所以它产生“国会大厦的房子”，而不是“cahouseol房子”？

Answer 1

var replaceArray = function(str, from, to) { 
    var obj = {}, regex; 
    from.forEach(function(item, idx){obj[item] = to[idx];}); 

    regex = new RegExp('(' + from.join('|') + ')', 'g'); 
    return str.replace(regex, function(match){return obj[match]}); 
} 

replaceArray("tar pit", ["tar", "pit"], ["capitol", "house"]); 

Answer 2

这个怎么样 -

function replaceArray(text, toBeReplacedArray, replacementArray) { 
    for (var i = 0; i < toBeReplacedArray.length; i++) { 
     var re = new RegExp(toBeReplacedArray[i], 'g'); 
     text = text.replace(re, '__' + i + '__'); 

    } 

    for (var i = 0; i < replacementArray.length; i++) { 
     var re = new RegExp('__' + i + '__', 'g'); 
     text = text.replace(re, replacementArray[i]); 
    } 
    return text; 
} 

replaceArray("tar pit", ['tar', 'pit'], ['capitol', 'house']);