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What's the difference between echo, print, and print_r in PHP?
... are more or less the same; they are both language constructs that display strings. The differences are subtle: print has a return value of 1 so it can be used in expressions whereas echo has a void return type; echo can take multiple parameters, although such usage is rare; echo is slightly faster ...
How do I decode HTML entities in Swift?
I am pulling a JSON file from a site and one of the strings received is:
23 Answers
23...
self referential struct definition?
...rce file, then the typedef has been "executed by the compiler", making the extra struct Cell; redundant. If, however, for some reason you put the last two lines into a header file which you include before you define the Cell struct with the first four lines, then the extra struct Cell; is nececairy....
Markdown and image alignment
...
@IvanHuang just make sure that you add an extra.css file as per the MkDocs documentation, and put the css in that file.
– Yann Duran
May 25 '18 at 5:21
...
How can I change the color of my prompt in zsh (different from normal text)?
...
It is working, but the $ before the string make zshrc to glitch. The text is put on the left when I use tabulation. I prefer @Joe the Person answer
– Moebius
Jul 17 '15 at 11:10
...
Most efficient way to check for DBNull and then assign to a variable?
...o extension methods:
public static T? GetValue<T>(this DataRow row, string columnName) where T : struct
{
if (row.IsNull(columnName))
return null;
return row[columnName] as T?;
}
public static string GetText(this DataRow row, string columnName)
{
if (row.IsNull(columnNam...
How to handle configuration in Go [closed]
...ing/json"
"os"
"fmt"
)
type Configuration struct {
Users []string
Groups []string
}
file, _ := os.Open("conf.json")
defer file.Close()
decoder := json.NewDecoder(file)
configuration := Configuration{}
err := decoder.Decode(&configuration)
if err != nil {
fmt.Println("err...
Location of my.cnf file on macOS
...IR, the MySQL base installation directory.
file specified with --defaults-extra-file=path if any
~/.my.cnf - User-specific
~/.mylogin.cnf - User-specific (clients only)
Source: Using Option Files.
Note: On Unix platforms, MySQL ignores configuration files that are world-writable. This is inte...
Find a pair of elements from an array whose sum equals a given number
... java.util.HashMap;
public class ArrayPairSum {
public static void main(String[] args) {
int []a = {2,45,7,3,5,1,8,9};
printSumPairs(a,10);
}
public static void printSumPairs(int []input, int k){
Map<Integer, Integer> pairs = new HashMap<Integer, Integer&g...
iPhone App Minus App Store?
... version="1.0">
<dict>
<key>appleId</key>
<string></string>
<key>artistId</key>
<integer>0</integer>
<key>artistName</key>
<string>MYCOMPANY</string>
<key>buy-only</key>
<t...