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Pro JavaScript programmer interview questions (with answers) [closed]
...thout throwing errors. In addition it should be able to handle numbers as strings for extra credit.
– Abadaba
Dec 19 '12 at 6:25
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What is the instanceof operator in JavaScript?
...an example taken directly from Mozilla's developer site:
var color1 = new String("green");
color1 instanceof String; // returns true
var color2 = "coral"; //no type specified
color2 instanceof String; // returns false (color2 is not a String object)
One thing worth mentioning is instanceof evalua...
PowerShell Script to Find and Replace for all Files with a Specific Extension
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This powershell example looks for all instances of the string "\foo\" in a folder and its subfolders, replaces "\foo\" with "\bar\" AND DOES NOT REWRITE files that don't contain the string "\foo\" This way you don't destroy the file last update datetime stamps where the string w...
Why can I add named properties to an array as if it were an object?
...f
lastIndexOf
map
pop
push
reverse
shift
slice
some
sort
splice
toSource
toString
unshift
valueOf
share
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How do I duplicate a whole line in Emacs?
...ditor, but in Emacs there's always a customization. C-d is bound to delete-char by default, so how about C-c C-d? Just add the following to your .emacs:
(global-set-key "\C-c\C-d" "\C-a\C- \C-n\M-w\C-y")
(@Nathan's elisp version is probably preferable, because it won't break if any of the key bin...
Managing constructors with many parameters in Java
... Consider the following example
public class StudentBuilder
{
private String _name;
private int _age = 14; // this has a default
private String _motto = ""; // most students don't have one
public StudentBuilder() { }
public Student buildStudent()
{
return new ...
LogCat message: The Google Play services resources were not found. Check your project configuration
...google.android.gms.common.GooglePlayServicesUtil.class. The aforementioned string appears only in one place:
public static int isGooglePlayServicesAvailable(Context context) {
PackageManager localPackageManager = context.getPackageManager();
try {
Resources localResources = context....
Showing a different background colour in Vim past 80 characters
... out what that length is. Also, vim parses the value of this setting as a string every time it enters a window, initializes a buffer, etc, so this is kind of an expensive way of achieving the desired result.
– cptstubing06
Mar 8 '13 at 4:08
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How do I represent a time only value in .NET?
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TimeSpan timeSpan = new TimeSpan(2, 14, 18);
Console.WriteLine(timeSpan.ToString()); // Displays "02:14:18".
[Edit]
Considering the other answers and the edit to the question, I would still use TimeSpan. No point in creating a new structure where an existing one from the framework suffice.
On...
Generating a UUID in Postgres for Insert statement?
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I posted that comment as the error string struck out on Google. Also it gives a specific package name, for Ubuntu at least.
– Drew Noakes
Jan 29 '14 at 23:29
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