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Set value to NULL in MySQL
...s most likely because mysql differentiates between null written in capital letters and null written in small case.
So if you used an update statement with null, it would not work. If you set it to NULL, it would work fine.
Thanks.
...
What does enctype='multipart/form-data' mean?
...ill take care of the differences for you. Don't bother trying to parse the raw input received by the server.
Sometimes you will find a library that can't handle both formats. Node.js's most popular library for handling form data is body-parser which cannot handle multipart requests (but has docume...
Converting a Date object to a calendar object [duplicate]
... Java Naming conventions suggest that method names start with a lower case letter, so it should be: dateToCalendar or toCalendar (as shown).
OK, let's milk your code, shall we?
DateFormat formatter = new SimpleDateFormat("yyyyMMdd");
date = (Date)formatter.parse(date.toString());
DateFormat i...
Log all requests from the python-requests module
...httplib.HTTPConnection.debuglevel = 1 is enough @Mandible79 $ curl https://raw.githubusercontent.com/python/cpython/master/Lib/http/client.py |grep debuglevel it's always debuglevel > 0
– Yohann
Apr 27 '16 at 10:52
...
Count number of objects in list [closed]
...[1] 10
This is a "true" list :
> mylist <- list(1:10, rnorm(25), letters[1:3])
> length (mylist)
[1] 3
Also, it seems that R considers a data.frame as a list :
> df <- data.frame (matrix(0, ncol = 30, nrow = 2))
> typeof (df)
[1] "list"
In such a case you may be intereste...
TextEnhancer拓展 - 增强App中的文本格式 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
... label.
blocks (22)[size=15.008px]718×162 14.5 KB
[size=15.008px]SetLetterSpacing:Set the letter spacing for the text of the specified label.
blocks (21)[size=15.008px]774×162 16.4 KB
[size=15.008px]SetTextShadow:Set a shadow effect for the text of the specified label. Parameters: radi...
Loop through an array in JavaScript
...could also use "let" or "const" instead of "var" for block scope.
for (var letter of ["a", "b", "c"]) {
console.log(letter);
}
Iterating an array of objects
const band = [
{firstName : 'John', lastName: 'Lennon'},
{firstName : 'Paul', lastName: 'McCartney'}
];
for(const member of band){
...
How to convert / cast long to String?
...g.valueOf(date);
If your Long might be null and you don't want to get a 4-letter "null" string, you might use Objects.toString, like: String s = Objects.toString(date, null);
EDIT:
You reverse it using Long l = Long.valueOf(s); but in this direction you need to catch NumberFormatException
...
jQuery remove all list items from an unordered list
...
raw js (no jQuery) solution: stackoverflow.com/questions/10750137/remove-all-li-from-ul
– Eido95
Feb 17 '16 at 20:34
...
How to change the Content of a with Javascript
...he textArea element.
Here's the MDN reference
value DOMString The raw value contained in the control.
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