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lexers vs parsers
...TMT_END in your syntax (for the parser) to denote the end of instructions. Now you can have a token with the same name associated with it, generated by the lexer. But you can change the actual lexeme it stands for. Eg. you can define STMT_END as ; to have C/C++-like source code. Or you can define it...
Compare double to zero using epsilon
...32k, much closer to zero than the epsilon around one we calculated above!
Now this is a toy floating point model that does not reflect all the quirks of a real floating point system , but the ability to reflect values smaller than epsilon is reasonably similar with real floating point values.
...
LEFT JOIN only first row
... Wouldn't at this point a simple sub-query be better? Cause now you have a join, and a sub-query. Just asking cause I am looking for solution to same problem :)
– galdikas
Feb 11 '16 at 10:36
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What are the differences in die() and exit() in PHP?
...t if we take die() as is from Perl too.
Oops! We have two exit functions now! Let's make it so that they both
can take a string or integer as an argument and make them identical!"
The end result is that this didn't really make things any "easier",
just more confusing. C and Perl coders wi...
Unable to verify leaf signature
...
I have this problem right now at work. I submitted an IT ticket telling them SSL may be misconfigured -- they told me I was craZY. Is there any more information I can give them to resolve this issue?
– blakev
Nov...
How do I disable a jquery-ui draggable?
...
Which is to say that the draggable() docs are (now?) here, with nickb's link, above, going to the demo. ;)
– ruffin
Jan 15 '13 at 21:20
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Asynchronous Process inside a javascript for loop [duplicate]
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async await is here
(ES7), so you can do this kind of things very easily now.
var i;
var j = 10;
for (i = 0; i < j; i++) {
await asycronouseProcess();
alert(i);
}
Remember, this works only if asycronouseProcess is returning a Promise
If asycronouseProcess is not in your cont...
What's the difference between ES6 Map and WeakMap?
...eference, ever. That way garbage collection wouldn't be possible. I don't know if weak references are impossible or just don't make sense. But either way the key needs to be something that can be referenced weakly.
– Andreas Linnert
Jan 8 '16 at 14:00
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Is there any overhead to declaring a variable within a loop? (C++)
...
@toto A variable like this could also be nowhere – the var variable is initialized but never used, so a reasonable optimiser can just remove it completely (except the second snippet if the variable was used somewhere after the loop).
– CiaPan...
ssh remote host identification has changed
...gen man page:
-R hostname Removes all keys belonging to hostname from a known_hosts file. This option is useful to delete hashed hosts (see the -H option above).
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