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What is a lambda expression in C++11?
...n false ; return true ; }()) // i is all whitespace, assuming i is an std::string
– Blacklight Shining
Mar 2 '13 at 1:13
...
What does `m_` variable prefix mean?
...example (C# code) of this:
Bad practice:
public class Part
{
private String m_dsc; // The textual description
void SetName(string name)
{
m_dsc = name;
}
}
Good practice:
public class Part
{
private String description;
void SetDescription(string description)
...
Sending a message to nil in Objective-C
...ethods all return 0 when you've got a nil value, so you do not have to add extra checks for nil all over:
if ( [myString length] > 0 )
or this:
return [myArray count]; // say for number of rows in a table
share
...
Collapse sequences of white space into a single character and trim string
...our favorite regexp library or use the following Cocoa-native solution:
NSString *theString = @" Hello this is a long string! ";
NSCharacterSet *whitespaces = [NSCharacterSet whitespaceCharacterSet];
NSPredicate *noEmptyStrings = [NSPredicate predicateWithFormat:@"SELF != ''"];
...
After Installing Java JDK 7 For Mac OS X - mvn -version still shows java version 1.6.0_31
... looks like this:
<dict>
<key>JVMArch</key>
<string>x86_64</string>
<key>JVMBundleID</key>
<string>com.oracle.java.7u04.jdk</string>
<key>JVMEnabled</key>
<true/>
<key>JVMHomePath</key>
...
Bold & Non-Bold Text In A Single UILabel?
... is shorter so everything becomes really simple:
Swift 5
func attributedString(from string: String, nonBoldRange: NSRange?) -> NSAttributedString {
let fontSize = UIFont.systemFontSize
let attrs = [
NSAttributedString.Key.font: UIFont.boldSystemFont(ofSize: fontSize),
N...
Get the last non-empty cell in a column in Google Sheets
...
I ended up comparing with the empty string rather than using ISBLANK, which treats some empty-looking cells (e.g. blank-returning formulas like ="" as non-blank. Thus: '=index(filter(A:A, A:A<>""), rows(filter(A:A, A:A<>"")))'
...
Is it bad practice to make a setter return “this”?
...builder pattern or a fluent interface.
It's also common in the Java API:
String s = new StringBuilder().append("testing ").append(1)
.append(" 2 ").append(3).toString();
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In which case do you use the JPA @JoinTable annotation?
... Project {
@Id
@GeneratedValue
private Long pid;
private String name;
@JoinTable
@OneToMany
private List<Task> tasks;
public Long getPid() {
return pid;
}
public void setPid(Long pid) {
this.pid = pid;
}
public String getNam...
Array vs. Object efficiency in JavaScript
...
var newNo = Math.floor(Math.random()*60000+10000);
if (!o[newNo.toString()]) o[newNo.toString()] = {id: newNo, name: 'test'};
if (!a2[newNo]) a2[newNo] = {id: newNo, name: 'test' };
a1.push({id: newNo, name: 'test'});
}
Original Post - Explanation
There are some misconceptions...