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Show an image preview before upload
... code snippet in the HTML example below filters out images from the user's selection and renders selected files into multiple thumbnail previews:
function handleFileSelect(evt) {
var files = evt.target.files;
// Loop through the FileList and render image files as thumbnails.
fo...
How to debug Google Apps Script (aka where does Logger.log log to?)
...All I did was make sure the cell that I wanted it to treat as "edited" was selected, then in Script Editor, I would go to Run->onEdit. Then my breakpoint would be hit.
However, I did have to stop using the event argument that gets passed into the onEdit function - you can't simulate that by doin...
jQuery: Check if div with certain class name exists
...presumably because it changes the native features jQuery can use to do the selection. Here's a test case where the div exists, and here's one where it doesn't exist.
– T.J. Crowder
Apr 26 '11 at 6:10
...
Setting “checked” for a checkbox with jQuery
...
also $(selector).checked to check is checked
– eomeroff
May 2 '11 at 23:56
6
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How do I get only directories using Get-ChildItem?
...eturned by Get-ChildItem has a "base" property, PSIsContainer. You want to select only those items.
Get-ChildItem -Recurse | ?{ $_.PSIsContainer }
If you want the raw string names of the directories, you can do
Get-ChildItem -Recurse | ?{ $_.PSIsContainer } | Select-Object FullName
For PowerSh...
SQL Server: Filter output of sp_who2
... SPID_1 INT,
REQUESTID INT
)
INSERT INTO @Table EXEC sp_who2
SELECT *
FROM @Table
WHERE ....
And filter on what you require.
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MySQL: @variable vs. variable. What's the difference?
...ialize this variable with a SET statement or inside a query:
SET @var = 1
SELECT @var2 := 2
When you develop a stored procedure in MySQL, you can pass the input parameters and declare the local variables:
DELIMITER //
CREATE PROCEDURE prc_test (var INT)
BEGIN
DECLARE var2 INT;
SET var2 =...
Can we have multiline comments in a Java properties file?
...
If you use Eclipse, you can select multiple lines and comment all with a shortcut (Ctrl+/ by default). Same shortcut uncomments the lines, but you have to pay attention no to select any empty line, which will cause the non-empty ones to get commented mo...
When is localStorage cleared?
... three conditions are met: (a) user clears recent history, (b) cookies are selected to be cleared, (c) time range is "Everything"
In Chrome, localStorage is cleared when these conditions are met: (a) clear browsing data, (b) "cookies and other site data" is selected, (c) timeframe is "from beginnin...
MySQL remove all whitespaces from the entire column
...
Working Query:
SELECT replace(col_name , ' ','') FROM table_name;
While this doesn't :
SELECT trim(col_name) FROM table_name;
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