我有一个文本区域,我想监视一个预定的匹配单词或短语列表。我可以如下实现这个,但我遇到的问题是为用户显示匹配的单词和/或短语。例如,如果用户键入“test,test two”,我将如何从grep语句中返回那些匹配的项目以供显示(或通过其他方法)? - 即使div更新为“请避免使用以下单词和/或短语:test1,test two”。
function isBanned(array, name){
return $.grep(array, function(i){
return name.indexOf(i) >= 0;
}).length > 0;
}
var bannedInput = ['test1','test two'];
$('#eventText').keyup(function(){
var inputVal = $('#eventText').val();
var match = isBanned(bannedInput, inputVal.toLowerCase());
if(match){
alert("match found");
}
});
答案 0 :(得分:1)
尝试
var input = $("#eventText"),
output = $("[for=eventText]"),
bannedInput = ["test1", "test two"];
input.on("keyup", function (e) {
var name = e.target.value.toLowerCase()
, match = $.grep(bannedInput, function (value) {
return new RegExp(value).test(name)
});
if (!!match.length) {
output.append(
"<br />Please avoid using the following words and/or phrases: "
+ "<span class=banned>\""
+ match.join(match.length === 1 ? " " : "\"<i>,</i> \"")
+ "\"</span>")
} else {
output.empty()
}
});
var input = $("#eventText"),
output = $("[for=eventText]"),
bannedInput = ["test1", "test two"];
input.on("keyup", function (e) {
var name = e.target.value.toLowerCase()
, match = $.grep(bannedInput, function (value) {
return new RegExp(value).test(name)
});
if (!!match.length) {
output.append(
"<br />Please avoid using the following words and/or phrases: "
+ "<span class=banned>\""
+ match.join(match.length === 1 ? " " : "\"<i>,</i> \"")
+ "\"</span>")
} else {
output.empty()
}
});
&#13;
i {
color:rgb(0, 0, 0);
}
.banned {
color:rgb(0, 0, 255);
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<input type="text" id="eventText" /><output for="eventText"></output>
&#13;
答案 1 :(得分:0)
$.map
可能会有所帮助:
function isBanned(bannedWords, input){
return $.map(bannedWords, function(n, i){
return input.indexOf(n) >= 0 ? n : 0;
}
}
isBanned
将返回一个数组,该数组的条目是禁止的单词或0.然后您可以使用$.grep
获取输入中找到的禁止单词数组:
var filteredWords = isBanned(bannedInput, inputVal.toLowerCase());
var bannedWords = $.grep(filteredWords, function(n, i) {return n !== 0});