大约有 48,000 项符合查询结果（耗时：0.0603秒） [XML]
How to check that a string is an int, but not a double, etc.?
... about using ctype_digit?
From the manual:
<?php
$strings = array('1820.20', '10002', 'wsl!12');
foreach ($strings as $testcase) {
if (ctype_digit($testcase)) {
echo "The string $testcase consists of all digits.\n";
} else {
echo "The string $testcase does not consist of...
What is the difference between “def” and “val” to define a function
... time (new instance of Function1).
def even: Int => Boolean = _ % 2 == 0
even eq even
//Boolean = false
val even: Int => Boolean = _ % 2 == 0
even eq even
//Boolean = true
With def you can get new function on every call:
val test: () => Int = {
val r = util.Random.nextInt
() => ...
Why does Math.floor return a double?
...
80
According to the same Javadoc:
If the argument is NaN or an infinity or positive zero or negati...
Generating all permutations of a given string
...
607
public static void permutation(String str) {
permutation("", str);
}
private static void...
How to replace text between quotes in vi
... |
edited Feb 21 '16 at 8:09
kabirbaidhya
2,08322 gold badges2525 silver badges4545 bronze badges
answer...
How do I auto-hide placeholder text upon focus using css or jquery?
...|
edited Aug 17 '17 at 8:10
C.d.
9,23066 gold badges3737 silver badges5050 bronze badges
answered Mar 14...
How to get first and last day of the week in JavaScript
...
20 Answers
20
Active
...
Google Authenticator implementation in Python
...st()
o = ord(h[19]) & 15
h = (struct.unpack(">I", h[o:o+4])[0] & 0x7fffffff) % 1000000
return h
def get_totp_token(secret):
return get_hotp_token(secret, intervals_no=int(time.time())//30)
It has two functions:
get_hotp_token() generates one-time token (that should in...
How to cast int to enum in C++?
...;Test>(i); // C++11
– Mitch
Sep 30 '16 at 17:58
3
@Mitch what do I get for using auto in this ...