大约有 20,000 项符合查询结果（耗时：0.0433秒） [XML]
Iterate through options
...
$("#selectId > option").each(function() {
alert(this.text + ' ' + this.value);
});
http://api.jquery.com/each/
http://jsfiddle.net/Rx3AP/
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How to strip HTML tags from string in JavaScript? [duplicate]
... from a comment by Mike Samuel on the duplicate question: <img onerror='alert(\"could run arbitrary JS here\")' src=bogus>
Code:
var html = "<p>Some HTML</p>";
var div = document.createElement("div");
div.innerHTML = html;
var text = div.textContent || div.innerText || "";
...
Access object child properties using a dot notation string [duplicate]
...e eval() function.
var r = { a:1, b: {b1:11, b2: 99}};
var s = "r.b.b2";
alert(eval(s)); // 99
I can feel people reeling in horror
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follow
...
string sanitizer for filename
... unsafe HTML context because this absolutely legal filename:
' onerror= 'alert(document.cookie).jpg
becomes an XSS hole:
<img src='<? echo $image ?>' />
// output:
<img src=' ' onerror= 'alert(document.cookie)' />
Because of that, the popular CMS software Wordpress removes t...
How to add Web API to an existing ASP.NET MVC 4 Web Application project?
... $.getJSON(uri)
.done(function (data) {
alert('got: ' + data);
});
$.ajax({
url: '/api/vs/5',
async: true,
success: function (data) {
alert('seccess1');
...
Create an enum with string values
.../ this will show message '0' which is number representation of enum member
alert(States.Active);
// this will show message 'Disabled' as string representation of enum member
alert(States[States.Disabled]);
Update 1
To get number value of enum member from string value, you can use this:
var str...
Validate that end date is greater than start date with jQuery
...();
var to = $("#to").val();
if(Date.parse(from) > Date.parse(to)){
alert("Invalid Date Range");
}
else{
alert("Valid date Range");
}
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What do parentheses surrounding an object/function/class declaration mean? [duplicate]
...ake a simple example:
for(var i=0; i<5; i++) {
setTimeout(function(){alert(i)}, 10);
}
The "expected" result could be the numbers from zero to four, but you get four instances of fives instead. This happens because the anonymous function in setTimeout and the for loop are using the very same...
How to have jQuery restrict file types on upload?
... really just need to know how to check for the file types before submit or alert.
14 Answers
...
How do you check that a number is NaN in JavaScript?
...
Use this code:
isNaN('geoff');
See isNaN() docs on MDN.
alert ( isNaN('abcd')); // alerts true
alert ( isNaN('2.0')); // alerts false
alert ( isNaN(2.0)); // alerts false
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