大约有 10,000 项符合查询结果（耗时：0.0256秒） [XML]
Catch checked change event of a checkbox
... />
$("#something").click( function(){
if( $(this).is(':checked') ) alert("checked");
});
Edit: Doing this will not catch when the checkbox changes for other reasons than a click, like using the keyboard. To avoid this problem, listen to changeinstead of click.
For checking/unchecking prog...
How to read a local text file?
...
try to put file:///User/Danny/Desktop/javascriptWork/testing.txt in your browser's url bar and see if you can see the file..
– Majid Laissi
Jan 21 '13 at 21:52
...
Check if object exists in JavaScript
... returns a string.
Therefore
if (typeof maybeObject != "undefined") {
alert("GOT THERE");
}
share
|
improve this answer
|
follow
|
...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...create list
"greenhouse/status/system",
"greenhouse/status/alerts",
"greenhouse/status/device_status"
2. 连接管理与重连机制
// 智能连接管理
when Screen1.Initialize
do
set MaxRetryCount to 5
set CurrentRetry to 0
set Reconne...
How to detect if a function is called as constructor?
...structor = true;
this.__previouslyConstructedByX = true;
}
alert(isConstructor);
}
Obviously this is not ideal, since you now have an extra useless property on every object constructed by x that could be overwritten, but I think it's the best you can do.
(*) "instance of" is an in...
The “unexpected ++” error in jslint [duplicate]
... its operand when used together with the same (+ or -).
var i = 0, j = 0;
alert(i++ +j);
This adds i and j (and increments i as a side effect) resulting in 0 being alerted.
But what is someone comes along and moves the space?
var i = 0, j = 0;
alert(i+ ++j);
Now this first increments j, and t...
What's the best way to retry an AJAX request on failure using jQuery?
...
Thanks for the script. Does it work with $.ajaxSetup ?
– Sevban Öztürk
Jan 9 '18 at 8:34
...
How to disable / enable dialog negative positive buttons?
...
Edit for complete solution...
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setIcon(android.R.drawable.ic_dialog_info);
builder.setTitle("Alert dialog title");
builder.setMessage("This is the example code snippet to dis...
Pass Variables by Reference in Javascript
... = "goodbye";
}
var myObj = { foo: "hello world" };
alterObject(myObj);
alert(myObj.foo); // "goodbye" instead of "hello world"
You can iterate over the properties of an array with a numeric index and modify each cell of the array, if you want.
var arr = [1, 2, 3];
for (var i = 0; i < arr....
Object.watch() for all browsers?
...
developer.mozilla.org/en/JavaScript/Reference/Global_Objects/…
– Eli Grey
Dec 27 '11 at 8:00
...