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Better way to check variable for null or empty string?
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I'll humbly accept if I'm wrong, but I tested on my own end and found that the following works for testing both string(0) "" and NULL valued variables:
if ( $question ) {
// Handle success here
}
Which could also be reversed to test for success as such:
if ( !$questi...
How is the undo tree used in Vim?
... I didn't know how to use this undo-tree, but I knew it would save my life someday. Well, the day has come. Thanks!!
– ndvo
Jan 29 '13 at 23:00
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What happens if you don't commit a transaction to a database (say, SQL Server)?
...un an insert command and "do something else" before I execute commit. will my insert command be written to log? that way if the server crashes before executing commit..it can come back to where it was and I can just issue commit later(whenever I am done doing "something else").
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Gson - convert from Json to a typed ArrayList
..., JsonLog is an interface implemented by different kinds of logs made by my Android app--SMS logs, call logs, data logs--and this ArrayList is a collection of all of them. I keep getting an error in line 6.
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How do I programmatically force an onchange event on an input?
...ele.onchange() is throwing a "method not found" expception for me in IE on my page, so I ended up using this function from the link Kolten provided and calling fireEvent(ele, 'change'), which worked:
function fireEvent(element,event){
if (document.createEventObject){
// dispatch for IE
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How to include a quote in a raw Python string
...ude new Python f String compatible functionality:
var_a = 10
f"""This is my quoted variable: "{var_a}". """
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How to select a drop-down menu value with Selenium using Python?
... This does not trigger an input event for me :( I have to do it myself as mentioned here: stackoverflow.com/questions/2856513/…
– Frederick Nord
Oct 31 '18 at 23:17
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scp with port number specified
I'm trying to scp a file from a remote server to my local machine. Only port 80 is accessible.
11 Answers
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How to read json file into java with simple JSON library
... Well, you want to process all of the items in the array in a loop. My code just gets you the first item (a.get(0)) because that was the closest match to your original code. The json-simple documentation says a JSONArray is java.util.List, so you can iterate over the elements just like you w...
Why is this jQuery click function not working?
.../after that function. I mistakenly changed the name of the target div for my pop-up overlays and then spent several frustrating hours looking for a script error. Big lesson learnt.
– johnlholden
May 7 '14 at 14:57
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