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Java equivalent to Explode and Implode(PHP) [closed]
I am new in Java although had a good experience in PHP, and looking for perfect replacement for explode and implode (available in PHP) functions in Java.
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What is the most efficient way to store tags in a database?
I am implementing a tagging system on my website similar to one stackoverflow uses, my question is - what is the most effective way to store tags so that they may be searched and filtered?
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Hex representation of a color with alpha channel?
...rimental web features to use this syntax. See Chromium Issue 618472 and Webkit bug 150853.
Android Apps that target Android P or newer can use this syntax
Opera supports this syntax in Opera 52 (or Opera 39 when experimental web features are enabled).
IE 11 and EdgeHTML 18 (Edge 44) do not support t...
Rails: Check output of path helper from console
Rails defines a bunch of magic with named routes that make helpers for your routes. Sometimes, especially with nested routes, it can get a little confusing to keep track of what URL you'll get for a given route helper method call. Is it possible to, using the Ruby console, see what link a given help...
Is optimisation level -O3 dangerous in g++?
...y popular demand, here an addition:
-O3 and especially additional flags like -funroll-loops (not enabled by -O3) can sometimes lead to more machine code being generated. Under certain circumstances (e.g. on a cpu with exceptionally small L1 instruction cache) this can cause a slowdown due to all th...
how perform grep operation on all files in a directory
Working with xenserver, and I want to perform a command on each file that is in a directory, grepping some stuff out of the output of the command and appending it in a file.
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Rotated elements in CSS that affect their parent's height correctly
Let's say I have a couple of columns, of which some I'd like to rotate the values of:
6 Answers
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Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign
I make an outer join and executed successfully in the informix database but I get the following exception in my code:
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querySelector, wildcard element match?
...omeId.
[id*='someId'] will match all ids containing someId.
If you're looking for the name attribute just substitute id with name.
If you're talking about the tag name of the element I don't believe there is a way using querySelector
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What is JavaScript garbage collection?
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Eric Lippert wrote a detailed blog post about this subject a while back (additionally comparing it to VBScript). More accurately, he wrote about JScript, which is Microsoft's own implementation of ECMAScript, although very similar to JavaScript. I would imagine that you can assume the vast majo...