html - javascript object : current or method? -

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this code:

var x = document.getelementbyid("x");

this html:

<p id="x">text</p>

this next javascript:

x.innerhtml = "newtext" alert(x.innerhtml)

so happen? x

save information when using var x = document.getelementbyid("x") , variable x change not html <p> id x?

since x reference dom element, it'd modify innerhtml of id - x.

demo: jsfiddle

var x = document.getelementbyid("x"); x.innerhtml = "newtext"; alert(x.innerhtml); //same below alert alert (document.getelementbyid("x").innerhtml);

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