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From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups: comp.lang.javascript
Subject: Re: Inserting stuff received with AJAX into the DOM
Date: Sun, 20 Aug 2017 19:18:50 +0200
Organization: PointedEars Software (PES)
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Xref: csiph.com comp.lang.javascript:33823

Cezary Tomczyk wrote:

> On 20/08/2017 12:16, Thomas 'PointedEars' Lahn wrote:
>> Stefan Ram wrote:
>>> { const text = document.createTextNode( rt );
>>>    const par = document.createElement( 'p' ); par.appendChild( text );
>>>    const div = document.createElement( 'div' ); div.appendChild( par );
>>>    div.setAttribute( 'id', 'particularid' );
>>>    whereyouwanttoappendit.appendChild( div ); }
>> […]
>> The first thing that one wants to do is to test each return values before
>> one uses it:
>> 
>>    if (par && text) par.appendChild(text);
>> 
>> Even better, in a function is the “gauntlet” or “early return” approach:
>> 
>>    if (!(par && text)) return …;
> 
> My approach would be a bit different. I would rather not do that as "if"
> statement here tends to hides the potential error. Better, in my
> opinion, is to use directly:
> 
> par.appendChild(text);
> 
> "par" is always defined, […]

How did you get that idea?

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