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How to have jQuery restrict file types on upload?
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In this case, if user would add ".jpg" for example to MS Word file, FileUpload would accept this file as picture. I think it is not right.
– Jeyhun
Apr 8 '14 at 7:00
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Only get hash value using md5sum (without filename)
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@lkraav: The command echo -n foo | md5sum outputs 2 shell words to stdout: acbd18db4cc2f85cedef654fccc4a4d8 and - (the - indicates the source as stdin). – You must tell bash to capture those words into a string, using Command Substitution: $( command ). – The ( brackets ) pro...
Array to String PHP?
...rays, you need a table that you can represent as an array.
Example:
id | word
1 | Sports
2 | Festivals
3 | Classes
4 | Other
You would simply select the data from the table with SQL, rather than have a table that looks like:
id | word
1 | Sports|Festivals|Classes|Other
That's not how any...
What's the name for hyphen-separated case?
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kebab-case-because it-looks-like-the-words-are skewered-on-a-kebab
– Aaron_H
Dec 16 '16 at 5:10
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show...
HTML button to NOT submit form
...ols website: http://www.w3schools.com/tags/att_button_form.asp)
In other words, the button type is "submit" by default
<button type="submit">Button Text</button>
Therefore an easy way to get around this is to use the button type.
<button type="button">Button Text</but...
SQL JOIN and different types of JOINs
...ve, because contrary to popular belief - a picture is not worth a thousand words. See next answer.
– hyankov
Oct 10 '17 at 8:37
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show 11 mo...
Select element by exact match of its content
...fter the searched text. It does not remove whitespace in the middle of the words. I believe this is desirable behavior, but you could change that if you wanted.
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RegEx for Javascript to allow only alphanumeric
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Use the word character class. The following is equivalent to a ^[a-zA-Z0-9_]+$:
^\w+$
Explanation:
^ start of string
\w any word character (A-Z, a-z, 0-9, _).
$ end of string
Use /[^\w]|_/g if you don't want to match the under...
How to Select Columns in Editors (Atom,Notepad++, Kate, VIM, Sublime, Textpad,etc) and IDEs (NetBean
...is is a toggle.
Columnar selection is a mode you enter and leave: in other words, Eclipse switches into a mode where all mouse selections have to be columnar and you stay in that mode until you switch back (by using the same command again).
It's not like other editors where columnar selections are e...
Is there any advantage of using map over unordered_map in case of trivial keys?
... (left/right/parent) plus a color bit which due to alignment takes a forth word. That is four pointers plus data per each element.
– Yakov Galka
Sep 7 '16 at 9:20
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