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configure: error: C compiler cannot create executables
...
You have an old set of developer tools. gcc is reporting its version as 4.0.1. This may be left over from migrating from an older version of the OS. If you've installed Xcode 4.3.x, you need to launch it, go into its preferences, select the Downloads tab, and click "Install" next to the Command Lin...
How to remove the first and the last character of a string
...s here.
– Episodex
Nov 25 '13 at 15:01
But if you where to move to another server, the traling slash might not be ther...
jQuery: Check if div with certain class name exists
...e first object that is returned from JQuery like so:
if ($(".mydivclass")[0]){
// Do something if class exists
} else {
// Do something if class does not exist
}
In this case if there is a truthy value at the first ([0]) index, then assume class exists.
Edit 04/10/2013: I've created a js...
Creating default object from empty value in PHP?
...ael BerkowskiMichael Berkowski
246k3636 gold badges408408 silver badges359359 bronze badges
39
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Does Java have something like C#'s ref and out keywords?
...
104
No, Java doesn't have something like C#'s ref and out keywords for passing by reference.
You c...
Clean way to launch the web browser from shell script?
... |
edited Jun 26 '10 at 17:48
answered Jun 26 '10 at 16:51
...
Javascript Regex: How to put a variable inside a regular expression?
...licious content (e.g. the variable comes from user input)
ES6 Update
In 2019, this would usually be written using a template string, and the above code has been updated. The original answer was:
var regex = new RegExp("ReGeX" + testVar + "ReGeX");
...
string.replace(regex, "replacement");
...
What is a stack trace, and how can I use it to debug my application errors?
...hrow new IllegalStateException("A book has a null property", e)
39 }
40 }
This might give you a stack trace that looks like:
Exception in thread "main" java.lang.IllegalStateException: A book has a null property
at com.example.myproject.Author.getBookIds(Author.java:38)
at ...
Android List Preferences: have summary as selected value?
...id:entryValues="@array/pref_list_entries_values"
android:defaultValue="0" />
Android will replace %s with the current string value of the preference, as displayed by the ListPreference's picker. The list's summary will also be set correctly when you enter the activity—you don't have to w...
Are negative array indexes allowed in C?
...
170
That is correct. From C99 §6.5.2.1/2:
The definition of the subscript
operator [] is th...