Ben Nadel

Recent Blog Comments By Ben Nadel

• Saving Temporary Form-Data To The SessionStorage API In Angular 9.1.9

  Posted on Jul 13, 2020 at 7:37 AM

  @Rmrz, Good question. So, the form.valueChanges property is an Observable exposed by the Form itself (which I think implements the FormGroupDirective or something under the hood). So, I'm taking that Observable and then I'm using the EventEmitter on my component as the subscriber ... read more »

• ColdFusion Components (CFC) vs. ColdFusion Closures Performance Exploration In Lucee CFML 5.3.4.80

  Posted on Jul 13, 2020 at 7:29 AM

  @Vikrant, I'm glad you found the post interesting :D I'm reflecting on the "cleanliness" comment; and, I think what I mean when I said "cleaner" was that the contents of the CFC were all centered around one cohesive set of features. That said, I definitely love closures... read more »

• The Double-Bang (!!) Operator And A Misunderstanding Of How JavaScript Handles Truthy / Falsy Values

  Posted on Jul 13, 2020 at 7:23 AM

  @Howard, Honestly, I do go back and forth on this point. A number of people have recommended using Number() instead of + and Boolean() instead of !! . The thing that I keep coming back to is that the context of its use generally implies its usage. For example, when setting an obje... read more »

• The Double-Bang (!!) Operator And A Misunderstanding Of How JavaScript Handles Truthy / Falsy Values

  Posted on Jul 13, 2020 at 7:17 AM

  @Mitchell, Great catch. I don't actually write that much JSX (I mostly use Angular / AngularJS these days). But, I do maintain a lot of other people's JSX :D Which is where I see most of this stuff. For some reason, the !! seems to be more prevalent in our JSX code than our AngularJS c... read more »

• The Double-Bang (!!) Operator And A Misunderstanding Of How JavaScript Handles Truthy / Falsy Values

  Posted on Jul 13, 2020 at 7:16 AM

  @Marian, Good use-case, that makes sense to me. nice tip.... read more »

• Evaluating Database Records That Contain ColdFusion Interpolation Expressions In Adobe ColdFusion 2018

  Posted on Jul 10, 2020 at 9:56 AM

  @Angel, Ha ha, my pleasure, good sir!... read more »

• Playing With The Zip Virtual File System (VFS) In Lucee 5.3.2.77

  Posted on Jul 4, 2020 at 10:06 AM

  @Christopher, Yes, all you have to do is remove the cf part, and treat it like a script-based tag: zip { } . I have a bunch of examples regarding Lucee CFML here: https://www.bennadel.com/blog/3767-using-coldfusion-tags-in-cfscript-in-lucee-cfml.htm Hope that helps!... read more »

• The Double-Bang (!!) Operator And A Misunderstanding Of How JavaScript Handles Truthy / Falsy Values

  Posted on Jul 4, 2020 at 7:48 AM

  @Atmin, That's an interesting trick, filtering using the Boolean constructor. I don't believe I've seen that before. Re: clarity, I go back and forth on this. I know that many people use Boolean() and Number() to cast values. And, I tend to use !! for Booleans and + for numbers: ... read more »

• The Double-Bang (!!) Operator And A Misunderstanding Of How JavaScript Handles Truthy / Falsy Values

  Posted on Jul 4, 2020 at 7:45 AM

  @Clement, That's awesome! Perhaps this is a sign of how old my code-bases are.... read more »

• The Double-Bang (!!) Operator And A Misunderstanding Of How JavaScript Handles Truthy / Falsy Values

  Posted on Jul 4, 2020 at 7:40 AM

  @Craig, Normally, I use it when I am preparing a response to a method call in which I had to calculate a value. For example, I might have something like this: function hasTeamMembers( team ) { return( !! team.members.length ); } ... where any length of .members greater than zero ... read more »

• Applying CSS Flexbox To Pseudo-Elements

  Posted on Jul 3, 2020 at 4:53 PM

  @Hassam, Awesome, glad you found this helpful :)... read more »

• Applying CSS Flexbox To Pseudo-Elements

  Posted on Jul 3, 2020 at 5:53 AM

  @Andreas, Thank you very much for the kind words! I'm just happy to be adding some value when I can. Here's to a long and fruitful future!... read more »

• The Double-Bang (!!) Operator And A Misunderstanding Of How JavaScript Handles Truthy / Falsy Values

  Posted on Jul 2, 2020 at 8:04 AM

  @Charles, Consider it fixed -- thanks for catching that!... read more »

• The Double-Bang (!!) Operator And A Misunderstanding Of How JavaScript Handles Truthy / Falsy Values

  Posted on Jul 2, 2020 at 8:03 AM

  @Charles, Ahhh, good catch. I wasn't actually testing any of these - I'll make that change.... read more »

• Using CFDocument To Save InVision Prototypes As Interactive PDFs In Lucee CFML 5.3.4.80

  Posted on Jul 1, 2020 at 1:30 PM

  @Chris, Ha ha ha, thanks :D I'm gonna see if I can flesh this out into something more scalable with a larger prototype. Will be interesting to see what the user-experience is like.... read more »

• Are There "Dark Matter" Designers?

  Posted on Jul 1, 2020 at 9:00 AM

  @Florin, That sounds really interesting -- I'll take a look, thanks :D... read more »

• Are There "Dark Matter" Designers?

  Posted on Jul 1, 2020 at 8:59 AM

  @John, I've not heard of the "outward mindset"; but, looking at the summary on Amazon, it makes sense. I will admit that it is sometimes extremely hard to understand other people's point-of-view. As I've gotten older, I've gotten somewhat better about this. But, it's also imp... read more »

• Scope Traversal Behavior With Undefined Function Arguments In Lucee CFML 5.3.6.61

  Posted on Jun 25, 2020 at 3:36 PM

  @Chris, What would be great if ColdFusion just had first-class support for null -- then a lot of these issues go away (well, at least this one) :D I know Lucee CFML has a setting that you can turn on, but I have not tried it yet - I do think that would change how this works (but can't c... read more »

• Scope Traversal Behavior With Undefined Function Arguments In Lucee CFML 5.3.6.61

  Posted on Jun 25, 2020 at 4:54 AM

  @Chris, @Andrew, Exactly - the closure is just about bindings to the lexical scope - ie, the scope in which the closure was defined (not executed). The issue here is a closure doesn't remove the scope-traversal that the ColdFusion runtime does when evaluating variables. All it does is ad... read more »

• Proxying Amazon AWS S3 Pre-Signed-URL Uploads Using CFHTTP And Lucee CFML 5.3.6.61

  Posted on Jun 24, 2020 at 9:03 AM

  @All, One thing I ran into here was that if the Connection Fails, the status_code is reported as 0 . Well, it seems that - at least in Chrome - if you send back a status code of 0 , the request just hangs. As such, I've been using this: if ( val( s3Response.status_code ) < 100 ) { ... read more »