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MySQL, better to insert NULL or empty string?
...tching databases, is that Oracle does not support empty strings. They are converted to NULL automatically and you can't query for them using clauses like WHERE somefield = '' .
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Using custom fonts using CSS?
...rowsers; you can use fontsquirrel.com's generator to avoid too much effort converting.
You can find a nice set of free web-fonts provided by Google Fonts (also has auto-generated CSS @font-face rules, so you don't have to write your own).
while also preventing people from having free access to ...
Best way to check if object exists in Entity Framework?
...k if object is null , it works 100% for me
try
{
var ID = Convert.ToInt32(Request.Params["ID"]);
var Cert = (from cert in db.TblCompCertUploads where cert.CertID == ID select cert).FirstOrDefault();
if (Cert != null)
{
db.TblCompCertUploads.Delete...
What should a Multipart HTTP request with multiple files look like? [duplicate]
...ntains binary data, so I'm not posting the request as such - instead, I've converted every non-printable-ascii character into a dot (".").
POST /cgi-bin/qtest HTTP/1.1
Host: aram
User-Agent: Mozilla/5.0 Gecko/2009042316 Firefox/3.0.10
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/...
console.log timestamps in Chrome?
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I convert arguments to Array using Array.prototype.slice so that I can concat with another Array of what I want to add, then pass it into console.log.apply(console, /*here*/);
var log = function () {
return console.log.app...
Rails: how do I validate that something is a boolean?
...
This does not work, as any string eg, "foo" will be converted into true.
– Ka Mok
Jun 4 '18 at 22:55
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How do I clone a generic list in C#?
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I think List.ConvertAll might do this in faster time, since it can pre-allocate the entire array for the list, versus having to resize all the time.
– MichaelGG
Oct 21 '08 at 17:43
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Eclipse error: “The import XXX cannot be resolved”
...f you import a maven project as "Java project" then this problem is occur. Convert project to maven project and update as you said then the problem is gone.
– kodmanyagha
Jun 26 '18 at 22:53
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How dangerous is it to compare floating point values?
...th scanf or strtod, do not exist as floating point values and get silently converted to the nearest approximation. This is what demon9733's answer was talking about.
The fact that many results get rounded due to not having enough precision to represent the actual result. An easy example where you ca...
Accessing an SQLite Database in Swift
...nts. Declare Swift enums for discrete data types. Define your own database-convertible types.
Database Migrations
Speed: https://github.com/groue/GRDB.swift/wiki/Performance
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