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Is there any way to prevent input type=“number” getting negative values?
... working fine for me. Can you please check:
<input type="number" name="test" min="0" oninput="validity.valid||(value='');">
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hasNext in Python iterators?
...nt is not asking for permission. There are situations in which you want to test for the existence of a next element without consuming it. I would accept the try catch solution if there was an unnext() method to put the first element back after I have checked that it exists by calling next().
...
Javascript : natural sort of alphanumerical strings
... recognize numbers. You can do case-insensitive using sensitivity: 'base'. Tested in Chrome, Firefox, and IE11.
Here's an example. It returns 1, meaning 10 goes after 2:
'10'.localeCompare('2', undefined, {numeric: true, sensitivity: 'base'})
For performance when sorting large numbers of strings...
How can I check if an element exists in the visible DOM?
How do you test an element for existence without the use of the getElementById method?
25 Answers
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Using Node.JS, how do I read a JSON file into (server) memory?
...o your JSON file.
For example, suppose you have the following JSON file.
test.json
{
"firstName": "Joe",
"lastName": "Smith"
}
You can then easily load this in your node.js application using require
var config = require('./test.json');
console.log(config.firstName + ' ' + config.lastName);...
Make .git directory web inaccessible
...
My regex works in my testing, and should work according to the RedirectMatch documentation since the regex only has to match part of the URL, not the full URL: see the "subtle difference" note in the linked AliasMatch documentation. Still, the do...
Get program execution time in the shell
...assful of students' programs:
fmt="run { date = '$(date)', user = '$who', test = '$test', host = '$(hostname)', times = { user = %U, system = %S, elapsed = %e } }"
/usr/bin/time -f "$fmt" -o $timefile command args...
I later concatenated all the $timefile files and pipe the output into a Lua inte...
Compare floats in php
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There are still some edge cases which this test fails. Such as a=b=0 and if a is the smallest possible none zero positive value and b is the smallest possible non zero negative value, the test will incorrectly fail. Some good information here: floating-point-gui.de/er...
Can I replace groups in Java regex?
...lt);
}
}
m.appendTail(sb);
return sb.toString();
}
@Test
public void test1() {
String input = "{\"_csrf\":[\"9d90c85f-ac73-4b15-ad08-ebaa3fa4a005\"],\"originPassword\":[\"123\"],\"newPassword\":[\"456\"],\"confirmPassword\":[\"456\"]}";
String expected = "{\"_csrf\":...
How can I use interface as a C# generic type constraint?
...olving the halting problem.
Case 1: using a type
Example:
public class TestClass : SomeClass<IMyInterface> { ... }
Example 2:
public class TestClass
{
SomeClass<IMyInterface> myMember; // or a property, method, etc.
}
Basically this involves scanning all types, inheritan...