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How to escape apostrophe (') in MySql?
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Retrieving the last record in each group - MySQL
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MySQL 8.0 now supports windowing functions, like almost all popular SQL implementations. With this standard syntax, we can write greatest-n-per-group queries:
WITH ranked_messages AS (
SELECT m.*, ROW_NUMBER() OVER (PARTITION BY name ORDER BY id DESC) AS rn
FROM messages AS m...
Detect HTTP or HTTPS then force HTTPS in JavaScript
...school of thought that 301 is the devil for caching reasons. getluky.net/2010/12/14/301-redirects-cannot-be-undon
– fivedogit
Mar 3 '16 at 15:03
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In php, is 0 treated as empty?
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answered Feb 8 '10 at 9:18
deceze♦deceze
454k7373 gold badges641641 silver badges784784 bronze badges
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Java: Integer equals vs. ==
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+100
The JVM is caching Integer values. Hence the comparison with == only works for numbers between -128 and 127.
Refer: #Immutable_Objec...
How can I represent an infinite number in Python?
...ou can do:
import math
test = math.inf
And then:
test > 1
test > 10000
test > x
Will always be true. Unless of course, as pointed out, x is also infinity or "nan" ("not a number").
Additionally (Python 2.x ONLY), in a comparison to Ellipsis, float(inf) is lesser, e.g:
float('inf') &...
How to solve “Fatal error: Class 'MySQLi' not found”?
...talled)
– auspicious99
Dec 3 '18 at 10:46
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How to interpolate variables in strings in JavaScript, without concatenation?
... feature has been introduced in ES2015 (ES6).
Example
var a = 5;
var b = 10;
console.log(`Fifteen is ${a + b}.`);
// "Fifteen is 15.
How neat is that?
Bonus:
It also allows for multi-line strings in javascript without escaping, which is great for templates:
return `
<div class="${foo}"...
Scala Doubles, and Precision
... developed.
– akauppi
Sep 19 '14 at 10:02
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