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What is the best way to test for an empty string with jquery-out-of-the-box?
...
if (!a) {
// is emtpy
}
To ignore white space for strings:
if (!a.trim()) {
// is empty or whitespace
}
If you need legacy support (IE8-) for trim(), use $.trim or a polyfill.
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Python - How to sort a list of lists by the fourth element in each list? [duplicate]
...tegers are lexicographically compared. Thus, '5' will be larger than '20'. If an integer comparison is to be made, key=lambda x: int(x[3]) should be used
– inspectorG4dget
Jul 9 '13 at 18:11
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How to determine if object is in array [duplicate]
I need to determine if an object already exists in an array in javascript.
11 Answers
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Is there a math nCr function in python? [duplicate]
I'm looking to see if built in with the math library in python is the nCr (n Choose r) function:
2 Answers
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MySQL case sensitive query [duplicate]
...as been asked on this site before but I couldn't find a sufficient answer. If I'm doing a query like:
3 Answers
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What is the C# equivalent of NaN or IsNumeric?
... guess I can use Double.Parse or a regex (see below) but I was wondering if there is some built in way to do this, such as javascript's NaN() or IsNumeric() (was that VB, I can't remember?).
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Transferring files over SSH [closed]
...'re saying secure copy ./styles/, but not where to copy it to.
Generally, if you want to download, it will go:
# download: remote -> local
scp user@remote_host:remote_file local_file
where local_file might actually be a directory to put the file you're copying in. To upload, it's the opposit...
What's the false operator in C# good for?
...nd || operators.
The && and || operators can't be overridden, but if you override |, &, true and false in exactly the right way the compiler will call | and & when you write || and &&.
For example, look at this code (from http://ayende.com/blog/1574/nhibernate-criteria-api-...
Squash my last X commits together using Git
...ranch from which commits are analyzed for the rebase command. For example, if the user wishes to view 5 commits from the current HEAD in the past the command is git rebase -i HEAD~5.
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improv...
SELECT INTO using Oracle
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If NEW_TABLE already exists then ...
insert into new_table
select * from old_table
/
If you want to create NEW_TABLE based on the records in OLD_TABLE ...
create table new_table as
select * from old_table
/
If the pur...