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移动前端开发之viewport的深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...移动设备网站的开发时，我们需要的是ideal viewport。那么怎么才能得到ideal viewport呢？这就该轮到meta标签出场了。
我们在开发移动设备的网站时，最常见的的一个动作就是把下面这个东西复制到我们的head标签中：
<meta name="viewp...
How do I concatenate const/literal strings in C?
...;
#include <string.h>
void example(const char *header, const char **words, size_t num_words)
{
size_t message_len = strlen(header) + 1; /* + 1 for terminating NULL */
char *message = (char*) malloc(message_len);
strncat(message, header, message_len);
for(int i = 0; i < num...
Check if a Bash array contains a value
...i
Note that in cases where the value you are searching for is one of the words in an array element with spaces, it will give false positives. For example
array=("Jack Brown")
value="Jack"
The regex will see "Jack" as being in the array even though it isn't. So you'll have to change IFS and th...
How do I convert a Ruby class name to a underscore-delimited symbol?
...s defined in ActiveSupport::Inflector):
class String
def underscore
word = self.dup
word.gsub!(/::/, '/')
word.gsub!(/([A-Z]+)([A-Z][a-z])/,'\1_\2')
word.gsub!(/([a-z\d])([A-Z])/,'\1_\2')
word.tr!("-", "_")
word.downcase!
word
end
end
...
How can I use “.” as the delimiter with String.split() in java [duplicate]
...pecial meaning for regexes.
You (probably) want something like:
String[] words = line.split("\\.");
Some folks seem to be having trouble getting this to work, so here is some runnable code you can use to verify correct behaviour.
import java.util.Arrays;
public class TestSplit {
public stati...
Naming “class” and “id” HTML attributes - dashes vs. underlines [closed]
...commend the Google HTML/CSS Style Guide
It specifically states:
Separate words in ID and class names by a hyphen. Do not concatenate words and abbreviations in selectors by any characters (including none at all) other than hyphens, in order to improve understanding and scannability.
/* Not recomm...
What's wrong with this 1988 C code?
...r preprocessor definitions of IN and OUT:
#define IN 1; /* inside a word */
#define OUT 0; /* outside a word */
Notice how you have a trailing semicolon in each of these. When the preprocessor expands them, your code will look roughly like:
if (c == ' ' || c == '\n' || c == '\t')
...
Reverse a string in Java
...ring);
System.out.println(buffer.reverse());
}
Reverse string by WORDS:
public static void reverseStringByWords(String string) {
StringBuilder stringBuilder = new StringBuilder();
String[] words = string.split(" ");
for (int j = words.length-1; j >= 0; j--) {
strin...
Sorting a vector in descending order
...ay, O(n * log(n) + n), he said O(n * log(n)) + O(n). You're right that his wording is unclear (especially his misuse of the word complexity), but you could've answered in a kinder way. E.g.: Maybe you meant to use the word 'computation' instead of the word 'complexity'. Reversing the numbers is an ...
Sublime Text 2 multiple line edit
I want to edit multiple lines and every "word" within that line. For example:
9 Answers
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