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How do I make an HTML text box show a hint when empty?
... target a browser that does not support input placeholders, you can use a jQuery plugin called jQuery HTML5 Placeholder, and then just add the following JavaScript code to enable it.
$('input[placeholder], textarea[placeholder]').placeholder();
...
When to use std::size_t?
... in C++. By extension it is also guaranteed to be big enough for any array index so it is a natural type for a loop by index over an array.
If you are just counting up to a number then it may be more natural to use either the type of the variable that holds that number or an int or unsigned int (if...
After array_filter(), how can I reset the keys to go in numerical order starting at 0
...aceholder starting from 0, but unfortunately it still retains the original index. I looked for a while and couldn't see anything, perhaps I just missed the obvious, but my question is...
...
Unique constraint on multiple columns
...lumn unique constraint to an existing table.
Under the table, right click Indexes->Click/hover New Index->Click Non-Clustered Index...
A default Index name will be given but you may want to change it. Check the Unique checkbox and click Add... button
Check the columns you want included
...
How do 20 questions AI algorithms work?
Simple online games of 20 questions powered by an eerily accurate AI.
5 Answers
5
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How do I use su to execute the rest of the bash script as that user?
...run chsh for the other users. My issue is listed here at stackoverflow.com/q/15307289/80353 How do I adapt your answer in my situation?
– Kim Stacks
Mar 10 '13 at 3:32
...
What does “WARN Could not determine content-length of response body.” mean and how to I get rid of i
...
Asked the same question to one of Rails-Core's members:
https://twitter.com/luislavena/status/108998968859566080
And the answer:
https://twitter.com/tenderlove/status/108999110136303617
ya, it's fine. Need to clean it up, but nothing...
How to store date/time and timestamps in UTC time zone with JPA and Hibernate
...
@Override
public void set(PreparedStatement st, Object value, int index) throws SQLException {
Timestamp ts;
if(value instanceof Timestamp) {
ts = (Timestamp) value;
} else {
ts = new Timestamp(((java.util.Date) value).getTime());
}
...
How can I shuffle an array? [duplicate]
...lements in the array
while (counter > 0) {
// Pick a random index
let index = Math.floor(Math.random() * counter);
// Decrease counter by 1
counter--;
// And swap the last element with it
let temp = array[counter];
array[counter] = arr...
Reading/parsing Excel (xls) files with Python
...e
worksheet = workbook.sheet_by_name('Name of the Sheet')
open sheet by index
worksheet = workbook.sheet_by_index(0)
read cell value
worksheet.cell(0, 0).value
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