Question

Div1.InnerHtml = (someString);

-VS-

Div1.InnerHtml += (someString);

I notice they both do the same thing, but is there any real difference whether I have the + in there or not?
Also.. What’s the difference between InnerText & InnerHtml?

Answer 1

+= will append (someString) to the existing value of Div1.InnerHtml, whereas = will replace the value of Div1.InnerHtml with (someString).

If the results are the same then the starting value of Div1.InnerHtml is likely null or string.Empty ("")

Regarding InnerText vs InnerHtml: InnerHtml might return something like <h1>Hello World</h1> whereas InnerText would return Hello World (the value of the element without the actual HTML element).

Consider these cases:

string someString = "Hello";
string innerHtml = "";

innerHtml += someString; // result will be "Hello"

---

string someString = "Hello";
string innerHtml = "";

innerHtml = someString; // result will be "Hello"

---

string someString = "Hello";
string innerHtml = "World";

innerHtml += someString; // result will be "HelloWorld"

---

string someString = "Hello";
string innerHtml = "World";

innerHtml = someString; // result will be "Hello"