【发布时间】:2012-02-01 05:01:27
【问题描述】:
我正在构建一个 IRC 客户端,我希望实现一个选项卡完整名称的解决方案。我有一个数组形式的用户列表。当用户按下制表键时,它会完成用户名。当他们再次按下该键时,下一个用户就完成了。
我在这里有一个可行的解决方案,但我觉得它可以更加优化和简洁一些。如有任何建议,我将不胜感激。
// Get Active Window
var channel = irc.chatWindows.getActive();
// Get users input
var sentence = $('#chat-input').val().split(' ');
// Get the last word in the sentence
var partialMatch = sentence.pop();
// Get list of users
var users = channel.userList.getUsers();
// Set default index for loop
var userIndex=0;
//Persist the match
//Store the partialMatch to persist next time the user hits tab
if(window.partialMatch === undefined) {
window.partialMatch = partialMatch;
} else if(partialMatch.search(window.partialMatch) !== 0){
window.partialMatch = partialMatch;
} else {
if (sentence.length === 0) {
userIndex = users.indexOf(partialMatch.substr(0, partialMatch.length-1));
} else {
userIndex = users.indexOf(partialMatch);
}
}
//Cycle through userlist from last user or beginning
for (var i=userIndex; i<users.length; i++) {
var user = users[i] || '';
//Search for match
if (window.partialMatch.length > 0 && user.search(window.partialMatch, "i") === 0) {
//If no match found we continue searching
if(user === partialMatch || user === partialMatch.substr(0, partialMatch.length-1)){
continue;
}
//If we find a match we return our match to our input
sentence.push(user);
//We decide whether or not to add colon
if (sentence.length === 1) {
$('#chat-input').val(sentence.join(' ') + ":");
} else {
$('#chat-input').val(sentence.join(' '));
}
//We break from our loop
break;
}
}
【问题讨论】:
标签: javascript string optimization data-structures autocomplete