I\'m using the following function in a Firefox extension to check if a file exists in another extension:
I am using Directory.Exists to see if an entered directory is a valid directory. This works well for all local directories, and for valid remote directories that I have access to, but for remote direc
I\'ve got this little CMS thing going, and the user has the ability to preview the post before submitting. I\'d like to have a feature that checks whether a URL entered is valid (I.E. points to a reso
H开发者_JS百科ow to search for documents in a collection that are missing a certain field in MongoDB?Yeah, it\'s possible using $exists:
I want to test if a variable exists and if it doesn\'t, create i开发者_C百科t.The open()&varnum() functions can be used. Non-zero output from varnum() indicates the variable exists.
if exists (select itemcode from item where itemcode=1120) update item set itemname = \'laptop\' where开发者_开发技巧 itemcode = 1120
How do you test an element for existence without the use of the getElementById method? I have set up a live demo for reference. I will also print the code on here as well:
How can i convert this in LINQ? SELECT B.SENDER, B.SENDNUMBER, B.SMSTIME, B.SMSTEXT FROM MESSAGES B WHERE EXISTS ( SELECT A.SENDER
I have this simple query SELECT EXISTS(SELECT a FROM A WHERE a = \'lorem ipsum\'); That will return a 0 or 1 if there exists a row in A that contains \'lorem ipsum\'
Hey, I want to remove the whole line if a word exists in it?开发者_StackOverflow中文版 through PHP?
加载中,请稍侯......