Unable to run javascript onClick in HTML?
Question
I am trying to send the user input received through a text box and then send that input to a javascript, which is an another file (myfile.js). For some reason the html part is not working. Here is the code: myfile.js:
var TRange=null;
function findString (str) {
if (parseInt(navigator.appVersion)<4) return;
var strFound;
if (window.find) {
// CODE FOR BROWSERS THAT SUPPORT window.find
strFound=self.find(str);
if (!strFound) {
strFound=self.find(str,0,1);
while (self.find(str,0,1)) continue;
}
}
else if (navigator.appName.indexOf("Microsoft")!=-1) {
// EXPLORER-SPECIFIC CODE
if (TRange!=null) {
TRange.collapse(false);
strFound=TRange.findText(str);
if (strFound) TRange.select();
}
if (TRange==null || strFound==0) {
TRange=self.document.body.createTextRange();
strFound=TRange.findText(str);
if (strFound) TRange.select();
}
}
else if (navigator.appName=="Opera") {
alert ("Opera browsers not supported, sorry...")
return;
}
if (!strFound) alert ("String '"+str+"' not found!")
return;
}
search.html
<!DOCTYPE html>
<HTML>
<HEAD>
</head>
<title>Search</title>
<body>
<script src="myfile.js" type="text/javascript"></script>
<form name="input">
Search for: <input type="text" id ="keytex" name="keytext" onClick='if(document.getElementById("keytex").value!=\'\') findString(document.getElementById("keytex").value); return(false);'>
</form>
<p> You can search this text. Search the text again</p>
</body>
</html>
2 answers
solution1
1 ACCPTED 2012-07-20 01:34:07
Um... Did you even check your HTML? (There are many errors in your code, here's one.)
<input onClick='if(document.getElementById("keytex").value!=\'\') findString(document.getElementById("keytex").value); return(false);'>
See those \\' ? You can not do that in HTML. Plus, use brackets if(){} in inline codes.
This should works:
if(document.getElementById("keytex").value!="")
PS: Don't use inline JavaScript. They will only give you a messier HTML at the end.
//Good
document.querySelector("#keytex").addEventListener("click",function(){
if(this.value!=""){ //Use "this" to refer back the element.
findString(this.value);
}
return false;
});
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solution2
0 2012-07-20 01:06:25
可能您想使用onchange或onkeyup事件-不是onclick
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