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Rails auto-assigning id that already exists
... am guessing at your sequence name "company_id_seq", table name "company", and column name "id" ... please replace them with the correct ones. You can get the sequence name with SELECT pg_get_serial_sequence('tablename', 'columname'); or look at the table definition with \d tablename.
An alternate ...
Why specify @charset “UTF-8”; in your CSS file?
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It tells the browser to read the css file as UTF-8. This is handy if your CSS contains unicode characters and not only ASCII.
Using it in the meta tag is fine, but only for pages that include that meta tag.
Read about the rules for character set resolution of CSS files at the w3c spe...
View git history for folder
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And deletions of directories under path/to/folder ? will they show up?
– Zarathustra
Jul 22 '16 at 12:19
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How to git bundle a complete repo
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The synopsis for create command is git bundle create <file> <git-rev-list-args>. Running man git-rev-list (or man git-log) would give you --all. But I agree that it should be more visible in the bundle command documentation.
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jQuery show for 5 seconds then hide
...ation, it's just an instant effect.
Or, another option is to use .delay() and .queue() yourself, like this:
$("#myElem").show().delay(5000).queue(function(n) {
$(this).hide(); n();
});
share
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Find commit by hash SHA in Git
...t in Git by a given hash, SHA. For example, if I have the "a2c25061" hash, and I need to get the author and the committer of this commit.
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How to use relative/absolute paths in css URLs?
I have a production and development server.
The problem is the directory structure.
3 Answers
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What's the difference between String(value) vs value.toString()
Javascript has lot's of "tricks" around types and type conversions so I'm wondering if these 2 methods are the same or if there is some corner case that makes them different?
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How do I pass the this context to a function?
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Javascripts .call() and .apply() methods allow you to set the context for a function.
var myfunc = function(){
alert(this.name);
};
var obj_a = {
name: "FOO"
};
var obj_b = {
name: "BAR!!"
};
Now you can call:
myfunc.call(obj...
How to write string literals in python without having to escape them?
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Understood. And if a 'split()' is used on this string, will it split by lines by default?
– MadPhysicist
Apr 28 '17 at 19:37
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