[英]Scroll to bottom when new content is added to div
將新內容發送到聊天中時,如何使聊天滾動到底部? 我正在嘗試添加如下內容:
$('#what do I have to put here?').animate({scrollTop: $('#and here?').prop("scrollHeight")}, 200);
但是我無法使其工作(我不知道在代碼中的何處放置它)。
謝謝!
這是代碼的重要組成部分...也許我必須在這里添加它(但是我不知道如何或在哪里):
<script type="text/javascript">
var _answerBot = new answerBot();
function keypressInput(sender, event) {
if (event.which == 13) {
document.getElementById('subcontent').innerHTML += _answerBot.processInput(sender.value);
sender.value = '';
}
}
</script>
這是一個單獨的scripts.js文件:
var answerBot = function () {
var _this = this;
_this.processInput = function (text) {
updateUrl(text);
var _result = "<p class='answerbot-input'>" + text + "</p>";
text = text.replace(new RegExp("[ ]{2,}", "g"), " ");
var _words = text.toLowerCase().split(" ");
var _answers = [];
var _title = "";
if (_words.length === 0 || _words.toString() === '') { //if the input is empty
_answers = _this.specialContext.emptyInput;
_title = _this.specialContext.emptyInput;
} else {
var _possibleAnswers = findMatches(_words);
if (_possibleAnswers.length === 0) { //if no answer found
_answers = _this.specialContext.wrongInput;
_title = _this.specialContext.wrongInput;
}
if (_possibleAnswers.length == 1) { //context recognized
_answers = _this.answers[_possibleAnswers[0]].values;
_title = _this.answers[_possibleAnswers[0]].description;
}
if (_possibleAnswers.length > 1) {
_result += formatText(_this.specialContext.rephrase, _this.specialContext.rephrase);
for (var i = 0; i < _possibleAnswers.length; i++) {
_result += formatText(_this.answers[_possibleAnswers[i]].description, _this.answers[_possibleAnswers[i]].description);
}
}
}
if (_answers.length > 0) {
var _rand = Math.floor((Math.random() - 0.001) * _answers.length);
_result += formatText(_answers[_rand], _title);
}
return _result;
};
function formatText(text, title) {
return "<p class=\'answerbot-ai\' title=\'" + title + "\'>" + text + "</p>";
}
function findMatches(words) {
var foundKeywords = [];
var _possibleAnswers = [];
for (var i = 0; i < _this.keywords.length; i++) {
foundKeywords[i] = 0;
for (var j = 0; j < words.length; j++) {
if (_this.keywords[i].keys.indexOf(words[j]) >= 0) {
foundKeywords[i]++;
if (foundKeywords[i] == _this.keywords[i].keys.length) {
return [_this.keywords[i].value];
}
}
}
if (foundKeywords[i] * 2 > _this.keywords[i].keys.length) {
_possibleAnswers.push(_this.keywords[i].value);
}
}
return _possibleAnswers.filter(function (elem, pos) {
return _possibleAnswers.indexOf(elem) == pos;
});
}
function updateUrl(text){
history.pushState(null, null, "#question=" + encodeURIComponent(text));
if(typeof ga === "function")//google analytics
ga('send', 'event', 'question', text);
}
};
function AddMessage() { var $message = $("<p>").text("message"); var $messages = $("#messages"); $messages.append($message); $messages.animate({ scrollTop: $messages.prop("scrollHeight") }); }
#messages { border: 1px solid #000; height: 100px; overflow: auto; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="chat"> <div id="messages"></div> <button onClick="AddMessage()">Add Message</button> </div>
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