Javascript string functions

[TNT]

I have two questions concerning Javascript

1: Is there a way to search for a character in a string?
2: Is there a way to "chop off" some characters from the start of a string?

[iam_clint]

yes
[CODE=javascript]
var string = "the cat"
string.indexOf( "a");
[/CODE]
will return 5 because the a is the 5th character

You can read this Article on string functionality.

and yes you can chop off characters.
heres some left and right functions you may be used to using in other languages.
[CODE=javascript]
function Left(str, n){
if (n <= 0)
return "";
else if (n > String(str).len gth)
return str;
else
return String(str).sub string(0,n);
}
function Right(str, n){
if (n <= 0)
return "";
else if (n > String(str).len gth)
return str;
else {
var iLen = String(str).len gth;
return String(str).sub string(iLen, iLen - n);
}
}
[/CODE]

[TNT]

yes
[CODE=javascript]
var string = "the cat"
string.indexOf( "a");
[/CODE]
will return 5 because the a is the 5th character

You can read this Article on string functionality.

and yes you can chop off characters.
heres some left and right functions you may be used to using in other languages.
[CODE=javascript]
function Left(str, n){
if (n <= 0)
return "";
else if (n > String(str).len gth)
return str;
else
return String(str).sub string(0,n);
}
function Right(str, n){
if (n <= 0)
return "";
else if (n > String(str).len gth)
return str;
else {
var iLen = String(str).len gth;
return String(str).sub string(iLen, iLen - n);
}
}
[/CODE]

I am new to Javascript (only reading a book on the basics four days ago)
Can you post examples instead of the "str" and "n"?

[iam_clint]

ok so you have these functions
[CODE=javascript]
function Left(str, n){
if (n <= 0)
return "";
else if (n > String(str).len gth)
return str;
else
return String(str).sub string(0,n);
}
function Right(str, n){
if (n <= 0)
return "";
else if (n > String(str).len gth)
return str;
else {
var iLen = String(str).len gth;
return String(str).sub string(iLen, iLen - n);
}
}
[/CODE]

now you want the right 4 characters of a string

[CODE=javascript]
var thestring = "this is a simple test";
var somestring = Right(thestring , 4);
alert(somestrin g);
[/CODE]

somestring would = test

[CODE=javascript]
var thestring = "this is a simple test";
var somestring = Left(thestring, 4);
alert(somestrin g);
[/CODE]

somestring would = this

[markhu]

the real way to do string slices

There is no leftstr() or rightstr() functions in JavaScript because the slice() function handles both.

Here is an example that shows the first 4 chars of a string, then the last 4.

x="sample string";

r=x.slice(0,4) + ' : ' + x + ' : ' + x.slice(-4);

alert( r );

r will be "samp : sample string : ring"