使用正則表達式來一個字符串數組

Question

我創造了我尋找的字符串正則表達式匹配：

var re = new RegExp(searchTerm, "ig"); 

，我有，我想通過搜索數組有以下方面：

var websiteName = [ 
    "google", "youtube", "twitter", "medium", "amazon", "airbnb", "campaiyn", "uber", "dropbox", "asana", 
    "slack", "soundcloud", "reddit", "uscitp", "facebook" 
]; 

如果我的搜索詞是reddit testtest test，當我打電話的匹配功能我不會匹配：

for(var i = 0; i < websiteName.length; i = i + 1) { 
    if(websiteName[i].match(re) != null) { 
     possibleNameSearchResults[i] = i; 
    } 
    } 

我如何構造我的正則表達式，以便當我搜索數組時，如果只有一個單詞匹配，它仍然會返回true？

Answer 1

我想你想是這樣的：

var searchTerm = 'reddit testtest test'; 
 

 
var websiteNames = ["google", "youtube", "twitter", "medium", "amazon", "airbnb", "campaiyn", "uber", "dropbox", "asana", "slack", "soundcloud", "reddit", "uscitp", "facebook"]; 
 

 
// filter the websiteNames array based on each website's name 
 
var possibleNameSearchResults = websiteNames.filter(function(website) { 
 

 
    // split the searchTerm into individual words, and 
 
    // and test if any of the words match the current website's name 
 
    return searchTerm.split(' ').some(function(term) { 
 
    return website.match(new RegExp(term, 'ig')) !== null; 
 
    }); 
 
}); 
 

 
document.writeln(JSON.stringify(possibleNameSearchResults))

編輯：如果你想索引，而不是項目的實際價值，你可能會更好過與去一個更標準的forEach循環，像這樣：

var searchTerm = 'reddit testtest test', 
 
    websiteNames = ["google", "youtube", "twitter", "medium", "amazon", "airbnb", "campaiyn", "uber", "dropbox", "asana", "slack", "soundcloud", "reddit", "uscitp", "facebook"], 
 
    possibleNameSearchResults = [] 
 

 
// loop over each website name and test it against all of 
 
// the keywords in the searchTerm 
 
websiteNames.forEach(function(website, index) { 
 
    var isMatch = searchTerm.split(' ').some(function(term) { 
 
    return website.match(new RegExp(term, 'ig')) !== null; 
 
    }); 
 
    
 
    if (isMatch) { 
 
    possibleNameSearchResults.push(index); 
 
    } 
 
}) 
 

 
document.writeln(JSON.stringify(possibleNameSearchResults))