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Email validation using jQuery
...tion="" method="post" id="contactform">
<table class="contact-table">
<tr>
<td><label for="name">Name :</label></td>
<td class="name">...
Python circular importing?
...depends on whether the file you are importing already exists in the module table. If it does, Python uses whatever is currently in the symbol table. If not, Python begins reading the module file, compiling/executing/importing whatever it finds there. Symbols referenced at compile time are found or...
Is gcc std::unordered_map implementation slow? If so - why?
...red_map, the g++ implementation will automatically rehash to a larger hash table, and this would be a big drag on performance. If I remember correctly, unordered_map defaults to (smallest prime larger than) 100.
I didn't have chrono on my system, so I timed with times().
template <typename TEST...
Java: Detect duplicates in ArrayList?
...anding your question correctly, you have a 2d array of Block, as in
Block table[][];
and you want to detect if any row of them has duplicates?
In that case, I could do the following, assuming that Block implements "equals" and "hashCode" correctly:
for (Block[] row : table) {
Set set = new Ha...
Create a custom View by inflating a layout?
...u are using a bit of xml repeatedly. Suppose, for example, that you have a table that you wish to create a table row for each entry in a list. You've set up some xml:
In my_table_row.xml:
<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/an...
How to horizontally center a
... (and later), it might be better to have this instead:
#inner {
display: table;
margin: 0 auto;
}
It will make the inner element center horizontally and it works without setting a specific width.
Working example here:
#inner {
display: table;
margin: 0 auto;
border: 1px solid black;
}...
MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
...r.
for SQL server, the way to work around this is to first declare a temp table, insert value to that temp table, and then use MERGE
Like this:
declare @Source table
(
name varchar(30),
age decimal(23,0)
)
insert into @Source VALUES
('Helen', 24),
('Katrina', 21),
('Samia', 22),
('Hui Ling', 25)...
Can I return the 'id' field after a LINQ insert?
... I've used this before, but how to make this work on a multirelationship tables? Do I have to save the main tables first get the ID from both and then save both id to the relationship table?
– CyberNinja
Aug 12 '19 at 16:55
...
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
...ne takes every 4-bit nibble and turns it into a hex char. And it's using a table lookup, so it's probably fast. It could probably be faster if you replace v/16 and v%16 with bitwise shifts and AND's, but I'm too lazy to test it right now.
...
Get the week start date and week end date from week number
...ent: https://msdn.microsoft.com/en-us/library/ms181598.aspx
And here is a table that lays it out for you.
| DATEFIRST VALUE | Formula Value | 7 - DATEFIRSTVALUE - 1
Monday | 1 | 5 | 7 - 1- 1 = 5
Tuesday | 2 | 4 | ...