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How to get current date & time in MySQL?
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In database design, iIhighly recommend using Unixtime for consistency and indexing / search / comparison performance.
UNIX_TIMESTAMP()
One can always convert to human readable formats afterwards, internationalizing as is individually most convenient.
FROM_ UNIXTIME (unix_timestamp, [format ]...
How Scalable is SQLite? [closed]
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edit: I just realized that I may not have been fair to SQLite - I didn't index any columns in the SQLite database when I was serving it from a web page. This partially caused the slowdown I was experiencing. However, the observation of database-locking stands - if you have particularly onerous upd...
Iterate over object keys in node.js
...update your code sample to use Object.keys(myObject).forEach(function(key, index, arrayOfKeys) {
– Andy Lorenz
Mar 4 '19 at 17:03
add a comment
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What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
...ing new subscripting. (Added with literals):
arr[1] === [arr objectAtIndex:1]
dict[@"key"] === [dict objectForKey:@"key"]
[Edit 2]
The new ObjC literals were discussed in multiple WWDC 2012 sessions. I intentionally didn't remove the the filenames and the time of each slide so you can fin...
how to get the last character of a string?
...tring.prototype.slice method.
Just by:
str.slice(-1);
A negative start index slices the string from length+index, to length, being index -1, the last character is extracted:
"abc".slice(-1); // "c";
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How to change href of tag on button click through javascript
...there's no need here, this has been a DOM property forever, .href works in all browsers...for example would you use .getAttribute("id") instead of just .id? :)
– Nick Craver♦
Dec 6 '10 at 10:34
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PostgreSQL: Can you create an index in the CREATE TABLE definition?
I want to add indexes to some of the columns in a table on creation. Is there are way to add them to the CREATE TABLE definition or do I have to add them afterward with another query?
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How can I define a composite primary key in SQL?
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SELECT * FROM voting WHERE QuestionID = 7
it will use the primary key's index. If however you do this:
SELECT * FROM voting WHERE MemberID = 7
it won't because to use a composite index requires using all the keys from the "left". If an index is on fields (A,B,C) and your criteria is on B and C...
Loading existing .html file with android WebView
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If your structure should be like this:
/assets/html/index.html
/assets/scripts/index.js
/assets/css/index.css
Then just do ( Android WebView: handling orientation changes )
if(WebViewStateHolder.INSTANCE.getBundle() == null) { //this works only on single instance of we...
I ran into a merge conflict. How can I abort the merge?
...es available the common base, local and remote versions of the file in the index. (This is where they are read from for use in a 3-way diff tool by git mergetool.) You can use git show to view them.
# common base:
git show :1:_widget.html.erb
# 'ours'
git show :2:_widget.html.erb
# 'theirs'
git s...