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Is storing a delimited list in a database column really that bad?
Imagine a web form with a set of check boxes (any or all of them can be selected). I chose to save them in a comma separated list of values stored in one column of the database table.
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Convert .pem to .crt and .key
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I was able to convert pem to crt using this:
openssl x509 -outform der -in your-cert.pem -out your-cert.crt
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How to load assemblies in PowerShell?
...));
Now, the comments also say "users can just say Add-Type -AssemblyName Forms
(instead of System.Windows.Forms)". However, that's not what I see in Powershell v7.0.3 on Windows 10 2004.
# Returns an error
Add-Type -AssemblyName Forms
# Returns an error
[System.Reflection.Assembly]::Load([System....
Tri-state Check box in HTML?
... size="1"
value="❓"
onclick="switch(this.form.tristate.value.charAt(0)) {
case '&#x2753': this.form.tristate.value='✅'; break;
case '&#x2705': this.form.tristate.value='❌'; break;
case '&#x274C': this.form.tris...
How to parse/read a YAML file into a Python object? [duplicate]
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If your YAML file looks like this:
# tree format
treeroot:
branch1:
name: Node 1
branch1-1:
name: Node 1-1
branch2:
name: Node 2
branch2-1:
name: Node 2-1
And you've installed PyYAML like this:
pip in...
How are zlib, gzip and zip related? What do they have in common and how are they different?
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Short form:
.zip is an archive format using, usually, the Deflate compression method. The .gz gzip format is for single files, also using the Deflate compression method. Often gzip is used in combination with tar to make a compre...
Downloading Java JDK on Linux via wget is shown license page instead
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"preceding dash" should be "dash following either form of the option" but this is an excellent summarization.
– Alex Dupuy
Mar 18 '14 at 8:27
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Is C++ context-free or context-sensitive?
...uring machines.
In the example program, the prime computation could be performed by a linear-bounded Turing machine, so it does not quite prove Turing equivalence, but the important part is that the parser needs to perform the computation in order to perform syntactic analysis. It could have been a...
Use Font Awesome Icon in Placeholder
... fonts when the input is not empty. Combine it with jQuery like this.
<form role="form">
<div class="form-group">
<input type="text" class="form-control empty" id="iconified" placeholder="&#xF002;"/>
</div>
</form>
With this CSS:
input.empty {
font-f...
Visual Studio “Could not copy” … during build
...close your application through coding. Here is the code...
System.Windows.Forms.Application.Exit();
You have to put this code in to the form's closing event in all form. Example:
private void frm_menu_FormClosing(object sender, FormClosingEventArgs e)
{
System.Windows.Forms.Application.Exit(...