大约有 36,010 项符合查询结果（耗时：0.0455秒） [XML]
convert a JavaScript string variable to decimal/money
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Yes -- parseFloat.
parseFloat(document.getElementById(amtid4).innerHTML);
For formatting numbers, use toFixed:
var num = parseFloat(document.getElementById(amtid4).innerHTML).toFixed(2);
num is now a string with the number formatted with two decima...
How to delete all the rows in a table using Eloquent?
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The reason MyModel::all()->delete() doesn't work is because all() actually fires off the query and returns a collection of Eloquent objects.
You can make use of the truncate method, this works for Laravel 4 and 5:
MyModel::truncate();
That drops all rows f...
How can I access getSupportFragmentManager() in a fragment?
...r
FragmentManager fragManager = myContext.getFragmentManager();
You are done.
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使用 XML 和 Web 服务 · App Inventor 2 中文网
...Decoded, this will look like ((person ((firstname ”John”) (lastname ”Doe”)))).
XML and Web services
Many Web services have APIs that return information in XML format. To process these with App Inventor, you can decode the result with XMLTextDecode. Then extract the desired items from the...
How to use SCNetworkReachability in Swift
...be found in the edit history if somebody needs it.)
This is how you would do it in Swift 2.0 (Xcode 7):
import SystemConfiguration
func connectedToNetwork() -> Bool {
var zeroAddress = sockaddr_in()
zeroAddress.sin_len = UInt8(sizeofValue(zeroAddress))
zeroAddress.sin_family = sa_...
Ignore modified (but not committed) files in git?
...ge and the --assume-unchanged bit and related.
when I have your problem I do this
git update-index --assume-unchanged dir-im-removing/
or a specific file
git update-index --assume-unchanged config/database.yml
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Limit text length to n lines using CSS
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There's a way to do it using unofficial line-clamp syntax, and starting with Firefox 68 it works in all major browsers.
body {
margin: 20px;
}
.text {
overflow: hidden;
text-overflow: ellipsis;
display: -webkit-box;
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Add a space (“ ”) after an element using :after
... want to add a blank space after some content, however the content: " "; doesn't seem to work.
5 Answers
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How to extract extension from filename string in Javascript? [duplicate]
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A variant that works with all of the following inputs:
"file.name.with.dots.txt"
"file.txt"
"file"
""
null
undefined
would be:
var re = /(?:\.([^.]+))?$/;
var ext = re.exec("file.name.with.dots.txt")[1]; // "txt"
var ext = re.exec("file.txt")[1]; // "txt"
var ext = re.exec...
Using switch statement with a range of value in each case?
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Java has nothing of that sort. Why not just do the following?
public static boolean isBetween(int x, int lower, int upper) {
return lower <= x && x <= upper;
}
if (isBetween(num, 1, 5)) {
System.out.println("testing case 1 to 5");
} else if (isBetwe...