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What is the difference between gmake and make?
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'gmake' refers specifically to GNU make. 'make' refers to the system's default make implementation; on most Linux distros this is GNU make, but on other unixes, it could refer to some other implementation of make, such as BSD make, or the make imp...
Test if a class has an attribute?
... As is the point about IsDefined being cheaper... but in most cases (and in particular unit tests) you are unlikely to notice the difference. Maybe if it was a tight loop in production code...
– Marc Gravell♦
Aug 4 '09 at 7:58
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Does Ruby have a string.startswith(“abc”) built in method?
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It's called String#start_with?, not String#startswith: In Ruby, the names of boolean-ish methods end with ? and the words in method names are separated with an _. Not sure where the s went, personally, I'd prefer String#starts_wit...
Programmatically set height on LayoutParams as density-independent pixels
...dependent pixels (dp)? It looks like the height/width, when set programmatically, are in pixels and not dp.
5 Answers
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.htaccess redirect all pages to new domain
Which redirect rule would I use to redirect all pages under olddomain.example to be redirected to newdomain.example ?
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is there a require for json in node.js
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As of node v0.5.x yes you can require your JSON just as you would require a js file.
var someObject = require('./somefile.json')
In ES6:
import someObject from ('./somefile.json')
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Only one expression can be specified in the select list when the subquery is not introduced with EXI
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You can't return two (or multiple) columns in your subquery to do the comparison in the WHERE A_ID IN (subquery) clause - which column is it supposed to compare A_ID to? Your subquery must only return the one column needed for th...
string.ToLower() and string.ToLowerInvariant()
...ding on the current culture, ToLower might produce a culture specific lowercase letter, that you aren't expecting. Such as producing ınfo without the dot on the i instead of info and thus mucking up string comparisons. For that reason, ToLowerInvariant should be used on any non-language-specific ...
if arguments is equal to this string, define a variable like this string
I am doing some bash script and now I got one variable call source and one array called samples , like this:
3 Answers
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Count with IF condition in MySQL query
... ccc_news_comments.news_id = ccc_news.news_id
WHERE
`ccc_news`.`category` = 'news_layer2'
AND `ccc_news`.`status` = 'Active'
GROUP BY
ccc_news.news_id
ORDER BY
ccc_news.set_order ASC
LIMIT 20
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