Is it alright to ask general questions about javascript here?
I'm trying to understand the mental model(s) of the dom.
I'm experimenting with adding and removing elements from the page.
I got this to work:
` function addParagraph() {
` var newP = document.createElement("p");
` var newT = document.createTextNode("hello, world!");
` newP.appendChild(newT);
` document.getElementsByTagName('body')[0].appendChild(newP);
` }
my question is, if the above works, why doesn't this?
(replaced variable `newP`):
` function addParagraph() {
` var newT = document.createTextNode("hello, world!");
` document.createElement("p").appendChild(newT);
` document.getElementsByTagName('body')[0].appendChild(newP);
` }
What's at work here? does the variable capture something being passed
from the method?
why can't I use appendChild and createElement within the same
statement? I guess I thought that variables were mostly a shortcut, so
it seemed to me you COULD write the above example in one line, without
variables. (note: I can subsitute the var `newT` in the sample above
with no issues.)
admittedly, my knowledge of javascript is slim, but I find it hard to
learn it without also understanding its application to the dom. the
tutorials at w3schools.com are so dated.
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