我的搜索“功能”不起作用
[英]My search “function” does not work
问题描述
var cat = prompt("What Do You Want To Tweet??!");
if(cat.length >= 140)
{
confirm("Sorry but your Tweet was over the 140 character limit by: " + (cat.length - 140));
confirm("You need to resubmit a Tweet that is not over the 140 Character limit");
}
else{
confirm("Success, Your Tweet has been posted!");
}
//scan for websites
if (cat.search(" www ", " http ", ".com"))
{
}
else{
confirm("We have Detected a URL in your Tweet");
}
在尝试“推”网站之前，我的代码一直有效。 如果我输入www或.com作为推文，它将告诉我它检测到一个很好的URL。 但是，当我输入xxxxxx www xxxxxx（x代表其他名称）时，它不会检测到该网址。
2 个解决方案
解决方案1
0 2014-09-08 01:20:03
您可以使用jQuery进行更准确的搜索。 '.inArray（）'函数应该可以解决问题。
http://api.jquery.com/jquery.inarray/
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.inArray demo</title>
<style>
div {
color: blue;
}
span {
color: red;
}
</style>
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
<div>"John" found at <span></span></div>
<div>4 found at <span></span></div>
<div>"Karl" not found, so <span></span></div>
<div>"Pete" is in the array, but not at or after index 2, so <span></span></div>
<script>
var arr = [ 4, "Pete", 8, "John" ];
var $spans = $( "span" );
$spans.eq( 0 ).text( jQuery.inArray( "John", arr ) );
$spans.eq( 1 ).text( jQuery.inArray( 4, arr ) );
$spans.eq( 2 ).text( jQuery.inArray( "Karl", arr ) );
$spans.eq( 3 ).text( jQuery.inArray( "Pete", arr, 2 ) );
</script>
</body>
</html>
解决方案2
0 2014-09-08 17:09:06
您可以尝试使用正则表达式
var cat = prompt("What Do You Want To Tweet??!"),
expression = /[-a-zA-Z0-9@:%_\+.~#?&//=]{2,256}\.[a-z]{2,4}\b(\/[-a-zA-Z0-9@:%_\+.~#?&//=]*)?/gi,
regex = new RegExp(expression);
if(cat.length >= 140) {
confirm("Sorry but your Tweet was over the 140 character limit by: " + (cat.length - 140));
confirm("You need to resubmit a Tweet that is not over the 140 Character limit");
}
else{
confirm("Success, Your Tweet has been posted!");
}
//scan for websites
if (cat.match(regex)) {
confirm("We have dectected a URL in your Tweet");
}
else{
confirm("no URL");
}
获取后，我的网站数据总是重新加载。 所以搜索 function 不起作用
[英]after fetch, my website data always reloading. so search function does not work
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