***** Messages Popup En JavaScript *****

PMHello1.HTM PM2x2.HTM
PMHello5.HTM PMCalc.HTM PMChr20.HTM
PMHello9.HTM PMMsg.HTM PMPrime.HTM


<SCRIPT> alert ( 'Hello World...' ); </SCRIPT> <SCRIPT> alert ( 'Hello World.....' + '\r\n' + 'Hello World.....' + '\r\n' + 'Hello World.....' + '\r\n' + 'Hello World.....' + '\r\n' + 'Hello World.....' + '\r\n' ); </SCRIPT> <SCRIPT> var i ; var MsgHello ; //----- LOOP , Prepare message MsgHello = '' ; for ( i = 1 ; i <= 9 ; i++ ) { MsgHello += 'Hello World.........' + '\r\n' ; } alert ( MsgHello ); </SCRIPT>
<SCRIPT> alert ( 2 + 2 ); </SCRIPT> <SCRIPT> var R ; var C , A ; var MsgCalc ; R = 10 ; C = 2 * Math.PI * R ; A = Math.PI * R * R ; MsgCalc = 'Radius=' + R + '\r\n' + 'Circumference=' + C + '\r\n' + 'Area=' + A + '\r\n' ; alert ( MsgCalc ); </SCRIPT> <SCRIPT> var MyMsg ; MyMsg = '- Nice weather, isn\'t it ?' + '\r\n' + '- Yes "nice" weather.' + '\r\n' ; alert ( MyMsg ); </SCRIPT>
<SCRIPT> var i ; var MsgChars ; MsgChars = '***** CHARS: ' ; //----- LOOP , Prepare chars for ( i = 32 ; i <= 255 ; i++ ) { MsgChars += String.fromCharCode(i) ; } alert ( MsgChars ); </SCRIPT> <SCRIPT> var IsPrimeArray = new Array(1000); var i ; var j , jMax ; var MsgNumbers ; MsgNumbers = '***** PRIME NUMBERS: ' ; //----- LOOP 1 , On each number for ( i = 1 ; i <= 1000 ; i++ ) { //----- Could be a prime number IsPrimeArray[i] = true ; //----- LOOP 2 , Search a divisor j = 2 ; jMax = Math.floor ( i / 2 ); while ( IsPrimeArray[i] && (j <= jMax) ) { //----- "j" can divide "i" ? if ( (i % j) == 0 ) IsPrimeArray[i] = false ; j++ ; } //----- Display only prime numbers if (IsPrimeArray[i] == true) MsgNumbers += i + ' ' ; } alert ( MsgNumbers ); /* [<-- i -->] [<-- j -->] .#.....................#.........................# | | | 2 i div 2 1000 */ </SCRIPT>