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What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
..._id) REFERENCES
country (id) ON DELETE NO
ACTION ON UPDATE NO ACTION
Now simply issue an:
alter table region drop foreign key
region_ibfk_1;
And finally an:
alter table region drop column
country_id;
And you are good to go!
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Disable sorting for a particular column in jQuery DataTables
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As of DataTables 1.10.5 it is now possible to define initialisation options using HTML5 data-* attributes. See stackoverflow.com/a/32281113/1430996
– Jeromy French
Sep 8 '15 at 22:25
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NodeJS: How to get the server's port?
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Express 4.x answer:
Express 4.x (per Tien Do's answer below), now treats app.listen() as an asynchronous operation, so listener.address() will only return data inside of app.listen()'s callback:
var app = require('express')();
var listener = app.listen(8888, function(){
console.lo...
Can someone explain the right way to use SBT?
...ting out off the closet on this! I don't understand SBT. There, I said it, now help me please.
4 Answers
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How can you disable Git integration in Visual Studio 2013 permanently?
I know that you can disable git integration by using the Tools / Options dialog, but what I've noticed is that this setting doesn't seem to persist across sessions; i.e., as soon as close and reopen the solution, Git integration is enabled again. I'm guessing Visual Studio is seeing the .git folder ...
How to change collation of database, table, column?
The database is latin1_general_ci now and I want to change collation to utf8mb4_general_ci .
19 Answers
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Difference between “module.exports” and “exports” in the CommonJs Module System
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At this time module.exports and exports pointing to the same reference.
Now, imagine you re-write
greet.js as
exports = function () {
console.log('Hello World');
};
console.log(exports);
console.log(module.exports);
the output will be
[Function]
{}
the reason is : module.exports is a...
Check if an element is present in an array [duplicate]
The function I am using now to check this is the following:
9 Answers
9
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Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti
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With C# 7 you can now use discards:
_ = WorkAsync();
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What's the purpose of using braces (i.e. {}) for a single-line if or loop?
...think of is nested if's:
if (cond1)
if (cond2)
doSomething();
Now, assume you now want to doSomethingElse() when cond1 is not met (new feature). So:
if (cond1)
if (cond2)
doSomething();
else
doSomethingElse();
which is obviously wrong, since the else associates with the ...