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Set custom HTML5 required field validation message
...sign a function, it can accept a reference to the input element (DOM node) and it must return a string which is then displayed as the error message.
Compatibility
Tested in:
Chrome Canary 47.0.2
IE 11
Microsoft Edge (using the up-to-date version as of 28/08/2015)
Firefox 40.0.3
Opera 31.0
Ol...
Regular expression to find URLs within a string
...g for URLs. For example, I would like to be able to find www.google.com and http://yahoo.com in the following string:
...
Can you have a within a ?
...HTML4 specification states that:
Inline elements may contain only data and other inline elements
Span is an inline element, therefore having span inside span is valid.
There's a related question: Can <span> tags have any type of tags inside them? which makes it completely clear.
HTML5 s...
SQLAlchemy IN clause
...w SQL mode with SQLAlchemy, I use SQLAlchemy 0.9.8, python 2.7, MySQL 5.X, and MySQL-Python as connector, in this case, a tuple is needed. My code listed below:
id_list = [1, 2, 3, 4, 5] # in most case we have an integer list or set
s = text('SELECT id, content FROM myTable WHERE id IN :id_list')
c...
How do I make sure every glyph has the same width?
I've noticed that even at the same font size, there is not a standard width. How can I use these in front of a list of items so the words don't appear jagged?
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Rounding BigDecimal to *always* have two decimal places
...
Why does setScale(...) work? see BigDecimal setScale and round.
– Jason Law
Nov 26 '19 at 9:53
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How to define a reply-to address?
...
Solution for Rails 5.2 and possibly older/newer versions:
Amend the file:
config/environments/development.rb
With content:
Rails.application.configure do
config.action_mailer.default_options = {
reply_to: 'test@example.com'...
How do I convert Long to byte[] and back in java
How do I convert a long to a byte[] and back in Java?
12 Answers
12
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How do I make JavaScript beep?
...directly in JavaScript. You'll need to embed a short WAV file in the HTML, and then play that via code.
An Example:
<script>
function PlaySound(soundObj) {
var sound = document.getElementById(soundObj);
sound.Play();
}
</script>
<embed src="success.wav" autostart="false" width=...
What is the relationship between Looper, Handler and MessageQueue in Android?
I have checked the official Android documentation/guide for Looper , Handler and MessageQueue . But I couldn't get it. I am new to android, and got very confused with these concepts.
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