大约有 40,000 项符合查询结果（耗时：0.0824秒） [XML]
Last iteration of enhanced for loop in java
...e you append i, just not on the first iteration. (Please don't use "" + i, by the way - you don't really want concatenation here, and StringBuilder has a perfectly good append(int) overload.)
int[] array = {1, 2, 3...};
StringBuilder builder = new StringBuilder();
for (int i : array) {
if (bui...
What's the most efficient test of whether a PHP string ends with another string?
...
Here’s a simple way to check whether one string ends with another, by giving strpos an offset right where the string should be found:
function stringEndsWith($whole, $end)
{
return (strpos($whole, $end, strlen($whole) - strlen($end)) !== false);
}
Straightforward, and I think this’l...
How to get the entire document HTML as a string?
...e exact hash equivalent of saving the page to a file or the file generated by view-source. It seems the DOM normalizes some fields from the literal response content, like capitalising DOCTYPE headers
– wesinat0r
Jul 7 at 0:51
...
How to break out of nested loops?
...complicated. One possibility is to pass the variable to the inner function by reference (pointer), but this may confuse the compiler optimization and produce unnecessary extra code. Another possibility is to make such variables static at the module level, but that is not very beautiful, either. C is...
How to play a notification sound on websites?
...t="true" loop="false" src="' + filename +'.mp3">';
document.getElementById("sound").innerHTML='<audio autoplay="autoplay">' + mp3Source + oggSource + embedSource + '</audio>';
}
<button onclick="playSound('bing');">Play</button>
<div id="sound"></div>
Bro...
Standard deviation of a list
...dev(data, ddof=0):
"""Calculates the population standard deviation
by default; specify ddof=1 to compute the sample
standard deviation."""
n = len(data)
if n < 2:
raise ValueError('variance requires at least two data points')
ss = _ss(data)
pvar = ss/(n-ddof)
...
What is the purpose of double curly braces in React's JSX syntax?
... you! Unfortunately I'm out in California these days but feel free to drop by the #reactjs IRC room on freenode and I'd be happy to answer questions.
– Sophie Alpert
Mar 27 '14 at 4:39
...
In Java, is there a way to write a string literal without having to escape quotes?
...r \
| EscapeSequence
As you can see a StringLiteral can just be bound by " and cannot contain special character without escapes..
A side note: you can embed Groovy inside your project, this will extend the syntax of Java allowing you to use '''multi line string ''', ' "string with single quote...
Why, Fatal error: Class 'PHPUnit_Framework_TestCase' not found in …?
... I don't know such a thing. I got same error then I explore answer by cracking the package
– Jijesh Cherrai
Dec 21 '18 at 12:41
add a comment
|
...
How can I set focus on an element in an HTML form using JavaScript?
...orm with a text box in it. How do I go about setting focus to the text box by default?
9 Answers
...