大约有 38,000 项符合查询结果（耗时：0.0471秒） [XML]
How to execute a JavaScript function when I have its name as a string
...es = functionName.split(".");
var func = namespaces.pop();
for(var i = 0; i < namespaces.length; i++) {
context = context[namespaces[i]];
}
return context[func].apply(context, args);
}
You would call it like so:
executeFunctionByName("My.Namespace.functionName", window, arguments);...
How can I determine if a variable is 'undefined' or 'null'?
...
30 Answers
30
Active
...
How to disable GCC warnings for a few lines of code
...ine the version of GCC that it was added, but it was sometime before June 2010.
Here's an example:
#pragma GCC diagnostic error "-Wuninitialized"
foo(a); /* error is given for this one */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wuninitialized"
foo(b); /...
C# generic type constraint for everything nullable
...
answered Nov 7 '13 at 9:02
Matthew WatsonMatthew Watson
87.1k66 gold badges120120 silver badges211211 bronze badges
...
How to check if DST (Daylight Saving Time) is in effect, and if so, the offset?
... Los Angeles is UTC–8h Standard, UTC-7h DST. getTimezoneOffset returns 480 (positive 480 minutes) in December (winter, Standard Time), rather than -480. It returns negative numbers for the Eastern Hemisphere (such -600 for Sydney in winter, despite this being "ahead" (UTC+10h).
Date.prototype.st...
How to generate a simple popup using jQuery
... like:
a.selected {
background-color:#1F75CC;
color:white;
z-index:100;
}
.messagepop {
background-color:#FFFFFF;
border:1px solid #999999;
cursor:default;
display:none;
margin-top: 15px;
position:absolute;
text-align:left;
width:394px;
z-index:50;
padding: 25px 25px 20px...
“var” or no “var” in JavaScript's “for-in” loop?
...
104
Use var, it reduces the scope of the variable otherwise the variable looks up to the nearest cl...
How to set time delay in javascript
... need a delay when you click the image a second time. The delay should be 1000ms. So you would click the img.jpg then the img_onclick.jpg would appear. You would then click the img_onclick.jpg image there should then be a delay of 1000ms before the img.jpg is shown again.
...
ListView inside ScrollView is not scrolling on Android
...
answered Jun 2 '11 at 6:40
MichaelMichael
48.8k1919 gold badges126126 silver badges135135 bronze badges
...