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Question

when i write the example code(alert box) i see error:Uncaught SyntaxError:Unexpected token<
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Answer 1

you put the html in the JS section. so everything will be interpreted as JavaScript which leads to the error. take a look at other web codes on code playground to see how to split the codes ;)

Answer 2

sometimes the web browser execute the JavaScript code but sometimes I get a blank page????? what may be the problem?

Answer 3

سلام رضا
اشتباه این بود که کد اچ تی ام ال رو تو JS هم نوشته بودی

Answer 4

والیکم سلام ali you speak Persian

Answer 5

salam ali
are motevajeh eshtebaham shodam.akhe in avalin zaban hast ke daram yad migiram.albateh aghaye mario laurisch be khobi hamon moghe tozih dad.mamnonam.

Answer 6

خواهش رضا جان

Answer 7

Yes Noman I speak Persian