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JavaScript validation for empty input field
I have this input field
<input name="question"/> I want to call IsEmpty function when submit clicking submit button.
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How do I remove a key from a JavaScript object? [duplicate]
...o remove a property from an object.
The following examples all do the same thing.
// Example 1
var key = "Cow";
delete thisIsObject[key];
// Example 2
delete thisIsObject["Cow"];
// Example 3
delete thisIsObject.Cow;
If you're interested, read Understanding Delete for an in-depth explanatio...
Error on pod install
I have a working project the uses a pod file for some weeks now. When I learned that some of my pods have update I tried to 'pod install' on got this weird error
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Edit changeset comment after updates have been checked in to TFS
I have just switched to VS2012 and being unfamiliar with it, checked in some major changes without a comment. No other updates have been done since then and no other developers will have access to the code for another few hours.
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Memcache Vs. Memcached [duplicate]
Someone can explain me the difference between Memcache and Memcached in PHP environment?
What are the advantages of one over the other?
Can you also suggest the criteria used to choose between one or the other?
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Delete file from internal storage
I'm trying to delete images stored in internal storage. I've come up with this so far:
8 Answers
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Does the Java &= operator apply & or &&?
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From the Java Language Specification - 15.26.2 Compound Assignment Operators.
A compound assignment expression of the form E1 op= E2 is equivalent to E1 = (T)((E1) op (E2)), where T is the type of E1, except that E1 is evaluated only once.
So a &= b; is equivalent to a = a &am...
Get selected value of a dropdown's item using jQuery
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For single select dom elements, to get the currently selected value:
$('#dropDownId').val();
To get the currently selected text:
$('#dropDownId :selected').text();
share...
Remove the last character in a string in T-SQL?
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Alternatively: SELECT LEFT(YourColumnName, LEN(YourColumnName) - 1) FROM YourTable
– Kyle B.
Aug 10 '09 at 20:05
3
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What's the fundamental difference between MFC and ATL?
...normal" GUI programs (no COM, no ActiveX, nothing fancy), what is the fundamental difference I will see between ATL and MFC, to help me figure out which one to use?
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