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How do I round to the nearest 0.5?
...not correct. Since arithmetic with doubles usually has some small rounding errors, an operation such as 4.8 - 4.0 could give for example 0.799999... . In this case the code above would round to 4.5. Also better would to use Math.Floor instead of Math.Truncate, because right now negative numbers are...
Neither BindingResult nor plain target object for bean name available as request attribute [duplicat
...processAddCommodities(
@Valid Commodity commodity,
Errors errors) {
if (errors.hasErrors()) {
ModelAndView model = new ModelAndView("goodsForm");
model.addObject("searchRequest", new SearchRequest());
return model;
}
...
What does the exclamation mark do before the function?
...ight be tempted to try this:
function () {}()
but it results in a SyntaxError.
Using the ! operator before the function causes it to be treated as an expression, so we can call it:
!function () {}()
This will also return the boolean opposite of the return value of the function, in this case t...
Caching a jquery ajax response in javascript/browser
...t requests until the first comes back. Second, you might want to cache the error result of a request so that all requests for the same resource get the same result.
– mjhm
Oct 15 '14 at 14:08
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Pretty printing XML with javascript
...
I get an error, but the error has no message. It happens in the fiddle too, using firefox.
– Tomáš Zato - Reinstate Monica
Aug 23 '18 at 15:51
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Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
I am getting the following error when I try to connect to mysql:
34 Answers
34
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Escape quote in web.config connection string
...in the string and the query string can't be parsed resulting in the stated error. If it were that easy I wouldn't have asked here ;-)
– Sebastian P.R. Gingter
Jul 5 '10 at 8:06
1
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Could not load file or assembly or one of its dependencies
...dll (in my case NativeInterfaces.dll)
You can see one or more dll with the error in red Error opening file...
It means that this dll is missing in your system; in my case the dll name is MSVCR71.DLL
You can download missings dll from google and copy in right path (in my case c:\windows\system32)
A...
Renaming columns in pandas
...x x
1 x x x x x
2 x x x x x
From v0.25, you can also specify errors='raise' to raise errors if an invalid column-to-rename is specified. See v0.25 rename() docs.
REASSIGN COLUMN HEADERS
Use df.set_axis() with axis=1 and inplace=False (to return a copy).
df2 = df.set_axis(['V', 'W', 'X...
filename and line number of python script
...
NameError: global name '__file__' is not defined on my Python interpreter: Python 2.7.6 (default, Sep 26 2014, 15:59:23). See stackoverflow.com/questions/9271464/…
– bgoodr
May 5 '17 at 17...