大约有 45,000 项符合查询结果（耗时：0.0244秒） [XML]
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
... the constructor, you will get an array of that length:
x = new Array(5);
alert(x.length); // 5
To illustrate the different ways to create an array:
var a = [], // these are the same
b = new Array(), // a and b are arrays with length 0
c = ['foo', 'bar'], // these...
What are deferred objects?
...r rejected.
Deferred In Action:
$.get("test.php").done(
function(){ alert("$.get succeeded"); }
);
$.get("test.php")
.done(function(){ alert("$.get succeeded"); })
.fail(function(){ alert("$.get failed!"); });
And it seems that the existing ajax() method callbacks can be chained rat...
Implode an array with JavaScript?
...ters:
var bits = ['H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd'];
alert(bits.join()); // H,e,l,l,o, ,W,o,r,l,d
alert(bits.join('')); // Hello World
share
|
improve this answer
...
Javascript when to use prototypes
...var myObject = function () {
};
myObject.prototype.getA = function (){
alert("A");
};
myObject.getB = function (){
alert("B");
};
myObject.getB(); // This works fine
myObject.getA(); // Error!
var myPrototypeCopy = new myObject();
myPrototypeCopy.getA(); // This works, too.
...
Getting the object's property name
...
i is the name.
for(var name in obj) {
alert(name);
var value = obj[name];
alert(value);
}
So you could do:
seperateObj[i] = myObject[i];
share
|
impr...
Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?
...r, are purely symbols; they are not associated with any alphabet.
The ECMAScript standard, chapter 7.6 (which all the browsers except Internet Explorer are following), states that an identifier must start with one of the following.
a Unicode letter
$ or _
\ followed by a unicode escape sequence.
...
Assign variable in if condition statement, good practice or not? [closed]
...(x = processorIntensiveFunction()) { // declaration inside if intended
alert(x);
}
Why should that function be allowed to run a 2nd time with:
alert(processorIntensiveFunction());
Because the first version LOOKS bad? I cannot agree with that logic.
...
What is the most efficient way to create HTML elements using jQuery?
...of an element
// see below statements
}
var end = new Date().getTime();
alert( end - start );
var e = $( document.createElement('div') ); // ~300ms
var e = $('<div>'); // ~3100ms
var e = $('<div></div>'); // ~3200ms
v...
How to get the focused element with jQuery?
...
Try this:
$(":focus").each(function() {
alert("Focused Elem_id = "+ this.id );
});
share
|
improve this answer
|
follow
|
...
How to send multiple data fields via Ajax? [closed]
...here: http://api.jquery.com/jQuery.ajax/
So if that doesn't work, I would alert those variables to make sure they have values.
share
|
improve this answer
|
follow
...