document.write(mystr.indexOf('o',mystr.indexOf('o')+1));
2015-05-12
<script type="text/javascript">
document.write(Math.floor(3.3)+"<br/>");
document.write(Math.floor(-0.1)+"<br/>");
document.write(Math.floor(-9.9)+"<br/>");
document.write(Math.floor(8.9))
</script>
document.write(Math.floor(3.3)+"<br/>");
document.write(Math.floor(-0.1)+"<br/>");
document.write(Math.floor(-9.9)+"<br/>");
document.write(Math.floor(8.9))
</script>
2015-05-12
<script type="text/javascript">
document.write(Math.ceil(3.3)+"<br/>");
document.write(Math.ceil(-0.1)+"<br/>");
document.write(Math.ceil(-9.9)+"<br/>");
document.write(Math.ceil(8.9))
</script>
document.write(Math.ceil(3.3)+"<br/>");
document.write(Math.ceil(-0.1)+"<br/>");
document.write(Math.ceil(-9.9)+"<br/>");
document.write(Math.ceil(8.9))
</script>
2015-05-12
<script type="text/javascript">
var mystr="Hello World!";
document.write( mystr.substr(mystr.length-7,mystr.length-1)+ "<br />");
document.write(mystr.substr(0,5) );
</script>
var mystr="Hello World!";
document.write( mystr.substr(mystr.length-7,mystr.length-1)+ "<br />");
document.write(mystr.substr(0,5) );
</script>
2015-05-12
<script type="text/javascript">
var mystr="Hello World!"
document.write(mystr.substring(6,12)+ "<br />");
document.write(mystr.substring(0,5) );
</script>
var mystr="Hello World!"
document.write(mystr.substring(6,12)+ "<br />");
document.write(mystr.substring(0,5) );
</script>
2015-05-12
<script type="text/javascript">
var mystr="Hello World!"
document.write(mystr.indexOf("o",5));
</script>
var mystr="Hello World!"
document.write(mystr.indexOf("o",5));
</script>
2015-05-12