# Solve using only Javascript loops...

Write a JavaScript code, 1) to find a number of unique letters in string. (Eg. if keyword is unique, Unique count will be '4')

2) so that numbers appear in following format,

```    1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
```

for n=5. Input 'n' value from user.

3) to create a redirection script based on day of the week.

4) that reads the date of a day in one textbox, the month in a second textbox and the year in a third textbox. After submitting the form, it should display the complete date, including the correct extension on the day number ('st', 'nd', 'rd' or 'th'). Example : 2 April 1999 will produce: 'Today is 2nd of April, 1999.'

October 21, 2010 at 5:31 PM

Hi Friend,

Try the following code:

1)

```<script>
n = n.toString();
while (n.length < digits) {
}
return n;
}
var str = window.prompt("Enter String");
var array = [];
var totalCount;
var count=0;

for(var i = 0; i < str.length; i++){
if(!array[str[i]]) {
array[str[i]] = 1;
} else {
array[str[i]] += 1;
}
}
sortedArray = [];
for(var i in array){
sortedArray.push(code(i.charCodeAt(0), 5, '0'));
}
sortedArray.sort();
for(i = 0; i < sortedArray.length; i++){
count++;
}
document.write("Number of unique letters are: "+count);
</script>
```

Thanks

October 21, 2010 at 5:42 PM

Hi Friend,

Try the following code:

4)

```<script>
function number(value){
hunRem = value % 100;
tenRem = value % 10;
if (hunRem - tenRem == 10) {
return "th";
}
switch (tenRem) {
case 1:
return "st";
case 2:
return "nd";
case 3:
return "rd";
default:
return "th";
}
}
function display(){
var day=document.form.day.value;
var mon=document.form.month.value;
var year=document.form.year.value;

document.write("Today is "+day+number(day)+" of "+mon+", "+year);
}
</script>

<form name="form">
<table>
<tr><td>Enter Date of a day:</td><td><input type="text" name="day"></td></tr>
<tr><td>Enter month:</td><td><input type="text" name="month"></td></tr>
<tr><td>Enter year:</td><td><input type="text" name="year"></td></tr>
<tr><td><input type="button" onclick="display();" value="Submit"></td></tr>
</table>
</form>
```

Thanks

November 27, 2010 at 10:59 AM

November 27, 2010 at 10:59 AM

November 27, 2010 at 11:04 AM

```print("code sample");
```

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