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How to open, read, and write from serial port in C?
...
For demo code that conforms to POSIX standard as described in Setting Terminal Modes Properly
and Serial Programming Guide for POSIX Operating Systems, the following is offered.
This code should execute correctly using Linux on x...
Strip HTML from strings in Python
...(html)
return s.get_text()
A quick test:
html = u'<a href="#">Demo <em>(&not; \u0394&#x03b7;&#956;&#x03CE;)</em></a>'
print repr(html_to_text(html))
Result:
u'Demo (\xac \u0394\u03b7\u03bc\u03ce)'
Error handling:
Invalid HTML structure may cause ...
How can I capture the result of var_dump to a string?
...rmation about the variable, especially if you're working with resources).
Demo:
$demo = array(
"bool" => false,
"int" => 1,
"float" => 3.14,
"string" => "hello world",
"array" => array(),
"object" => new stdClass(),
"resource" => tmpfile(),
"nul...
How to check if two arrays are equal with JavaScript? [duplicate]
demo
16 Answers
16
...
How to check if a number is between two values?
...Size = 550;
console.log(windowSize.between(500, 600));
JS Fiddle demo.
Or, if you'd prefer to have the option to check a number is in the defined range including the end-points:
Number.prototype.between = function(a, b, inclusive) {
var min = Math.min.apply(Math, [a, b]),
max...
Remove last item from array
...g .slice() method like:
arr.slice(0, -1); // returns [1,0]
Here is a demo:
var arr = [1, 0, 2];
var newArr = arr.slice(0, -1); // returns [1,0]
console.log(newArr);
$('#div1').text('[' + arr + ']');
$('#div2').text('[' + newArr + ']');
<script src="http://code.jquery.com/jque...
What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
..., these variables are not visible/reachable outside the function. See live demo.
Javascript has function scoping. "Parameters and variables defined in a function are not visible outside of the function, and that a variable defined anywhere within a function is visible everywhere within the function...
Changing the selected option of an HTML Select element
...l option:contains(' + val + ')').prop({selected: true});
</script>
Demo
But if you do have the above set up and want to select by value using jQuery, you can do as before:
var val = 3;
$('#sel').val(val);
Modern DOM
For the browsers that support document.querySelector and the HTMLOption...
Python unittest - opposite of assertRaises?
...sed failure condition, behaves identically to assertRaises.
TLDR and live demo
It turns out to be surprisingly easy to add an assertNotRaises method to unittest.TestCase (it took me about 4 times as long to write this answer as it did the code). Here's a live demo of the assertNotRaises method in ...
To underscore or to not to underscore, that is the question
...are working in the context of the current instance
Example
public class Demo
{
private String name;
public Demo(String name) {
this.name = name;
}
}
Why does the underscore-notation exist?
Some people don't like typing "this", but they still need a way to distinguish a field an...