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Detecting Unsaved Changes
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This script is awesome, but for me it also displayed the warning message upon submitting my form. I fixed this by unbinding the event in an onClick (onclick="window.onbeforeunload=null")
– Joost
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JSP : JSTL's tag
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c:out escapes HTML characters so that you can avoid cross-site scripting.
if person.name = <script>alert("Yo")</script>
the script will be executed in the second case, but not when using c:out
share...
How to find if div with specific id exists in jQuery?
...='display:none;'></div>" + name + "</div>");
} else {
alert('this record already exists');
}
});
Or, the non-jQuery version for this part (since it's an ID):
$("li.friend").live('click', function(){
name = $(this).text();
if(document.getElementById(name) == null) {
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Parse string to date with moment.js
...t('DD-MM-YYYY'); var dateCalendarPart = moment(date).format('YYYY/MM/DD'); alert(date); alert(dateCalendarPart); Gives an invalid date error?????
– Andrew Day
Jun 15 '16 at 11:17
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The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl
... database connection, which you don't have!). If you're trying to prevent XSS attacks, you should be using htmlentities(). For any other attack, please elaborate on the exact threat.
– eggyal
Oct 6 '15 at 15:38
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How to access the correct `this` inside a callback?
...data, transport) {
this.data = data;
transport.on('data', () => alert(this.data));
}
Don't use this
You actually don't want to access this in particular, but the object it refers to. That's why an easy solution is to simply create a new variable that also refers to that object. The varia...
Abort Ajax requests using jQuery
...t, asynchronous simply means the request doesn't interrupt the flow of the script. Browsers now have the ability to abort the request prematurely before the request is completed.
– ElephantHunter
Apr 10 '12 at 19:12
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Multiple left-hand assignment with JavaScript
...: v1 = v2 = v3 = 6; They'll still be in local scope. Since David mentioned alerts, this would work as expected (if pre-var'd): alert(v1 = v2 = v3 = 6);
– ShawnFumo
Sep 10 '13 at 20:11
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JavaScript Date Object Comparison
...ed, and two objects are never equal to each other. Coerce them to number:
alert( +startDate2 == +startDate3 ); // true
If you want a more explicity conversion to number, use either:
alert( startDate2.getTime() == startDate3.getTime() ); // true
or
alert( Number(startDate2) == Number(startDate3)...
JavaScript for detecting browser language preference [duplicate]
I have been trying to detect the browser language preference using JavaScript.
26 Answers
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