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How to tell if a string is not defined in a Bash shell script
...se it echoes nothing) "VAR is set but its value might be empty". Try this script:
(
unset VAR
if [ -z "${VAR+xxx}" ]; then echo JL:1 VAR is not set at all; fi
if [ -z "${VAR}" ]; then echo MP:1 VAR is not set at all; fi
VAR=
if [ -z "${VAR+xxx}" ]; then echo JL:2 VAR is not set at all; fi
if [ ...
Export and Import all MySQL databases at one time
...
You can simplify/improve the script a bit: Replace the 9th line [databases=...] with these two lines: ExcludeDatabases="Database|information_schema|performance_schema|mysql" [next line] databases=`-u $USER -p$PASWORD -e "SHOW DATABASES;" | tr -d "| " | e...
Disable JavaScript error in WebBrowser control
...that navigates to a sharepoint site.
My problem is that i am getting JavaScript error.
6 Answers
...
Can I install Python 3.x and 2.x on the same Windows computer?
...rs into %SYSTEMROOT% (C:\Windows) which is then associated with py and pyw scripts, respectively.
In order to use the new launcher (without manually setting up your own associations to it), leave the "Register Extensions" option enabled. I'm not quite sure why, but on my machine it left Py 2.7 as ...
Get current directory name (without full path) in a Bash script
How would I get just the current working directory name in a bash script, or even better, just a terminal command.
20 Answe...
How to identify if a webpage is being loaded inside an iframe or directly into the browser window?
...
The description at MDN says that "if the document into which it's embedded has a different origin (such as having been located from a different domain), this is null."
– xeophin
Jan 8 '18 at 1...
jQuery remove all list items from an unordered list
...her error?
$('input').click(function() {
$('ul').empty()
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul>
<li>test</li>
<li>test</li>
</ul>
<input type="button" value="click me" ...
How to play audio?
I am making a game with HTML5 and JavaScript.
19 Answers
19
...
Selecting the last value of a column
... finds a value that is not an empty string. Finally it retunrs the value.
Script:
function lastValue(column) {
var lastRow = SpreadsheetApp.getActiveSheet().getMaxRows();
var values = SpreadsheetApp.getActiveSheet().getRange(column + "1:" + column + lastRow).getValues();
for (; values[lastR...
How to do relative imports in Python?
... culprit was the lack of access to outer packages when directly running as script, something -m was designed to solve.
– MestreLion
Nov 7 '13 at 3:40
26
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