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JAVASCRIPT WEEK 3
| Question | Answer |
|---|---|
| prompt("Hello"); | Display a prompt box |
| alert("Hello"); | Display alert message |
| open(" | Open the specific website in a new tab |
| function closeFunction(){ close();} <input type="button" value="Close" onclick="closeFunction()"/> If you press the 'Close button' | The website will close |
| confirm("Hello"); | Display a confirmation text with OK and CANCEL button |
| screen.width | Get your screen's width |
| var totalparagraph=document.getElementsByTagName("p"); alert("The total paragraphs are: "+totalparagraph.length); | Count the paragraphs |
| if document.passwordvalid.password.value.length>10{ document.write("Valid Password"); } | If the password's length is greater than 10, then the code will display the message "Valid Password". |
| what does the code below check? if (isNaN(number)) {} | If the variable 'number' is not a number |
| var grade=document.getElementById("number").value; | Get and returns an element with id 'number' |