jQuery Forum

why not just use <span class="objectBox objectBox-text">/(\s+)/ in firefox too then? It gives me the correct number of 5.</span>
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com">
jakecigar@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">javascript:alert("hello there Opera".split(/\b/).length)
Firefox says 5 , safari says 6, Opera says 15!
it really got me confused while writing some jQuery code!
now I use $.browser.opera ? /(\s+)/ :  /\b/ ; instead.
<span class="sg">
Ouch, I didn't realize there was that much of a difference!
</span></blockquote></div>

safari says 3 for
javascript:alert("hello there Opera".split(/(\s+)/).length)
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Matt Stith</b> <<a href="mailto:seventoes@gmail.com">
seventoes@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">why not just use <span>/(\s+)/ in firefox too then? It gives me the correct number of 5.
</span><div><span class="e" id="q_113173311b7f5240_1">
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
jakecigar@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">javascript:alert("hello there Opera".split(/\b/).length)
Firefox says 5 , safari says 6, Opera says 15!
it really got me confused while writing some jQuery code!
now I use $.browser.opera ? /(\s+)/ :  /\b/ ; instead.
<span>
Ouch, I didn't realize there was that much of a difference!
</span></blockquote></div>
</span></div></blockquote></div>
<br clear="all">
--
Ⓙⓐⓚⓔ - יעקב   ʝǡǩȩ   ᎫᎪᏦᎬ

o.O damn, like you said, i didnt know there was that big of a difference!
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com">jakecigar@gmail.com</a>
> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">safari says 3 for
javascript:alert("hello there Opera".split(/(\s+)/).length)
<div><span class="e" id="q_1131819b28c5917e_1">
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Matt Stith</b> <<a href="mailto:seventoes@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
seventoes@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">why not just use <span>/(\s+)/ in firefox too then? It gives me the correct number of 5.
</span><div><span>
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
jakecigar@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">javascript:alert("hello there Opera".split(/\b/).length)
Firefox says 5 , safari says 6, Opera says 15!
it really got me confused while writing some jQuery code!
now I use $.browser.opera ? /(\s+)/ :  /\b/ ; instead.
<span>
Ouch, I didn't realize there was that much of a difference!
</span></blockquote></div>
</span></div></blockquote></div>
<br clear="all">
</span></div><span class="sg">--
Ⓙⓐⓚⓔ - יעקב   ʝǡǩȩ   ᎫᎪᏦᎬ
</span></blockquote></div>

WWIED? What would IE do?
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Matt Stith</b> <<a href="mailto:seventoes@gmail.com">seventoes@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
o.O damn, like you said, i didnt know there was that big of a difference!<div><span class="e" id="q_1131828e40f89482_1">
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
jakecigar@gmail.com</a>
> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">safari says 3 for
javascript:alert("hello there Opera".split(/(\s+)/).length)
<div><span>
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Matt Stith</b> <<a href="mailto:seventoes@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
seventoes@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">why not just use <span>/(\s+)/ in firefox too then? It gives me the correct number of 5.
</span><div><span>
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
jakecigar@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">javascript:alert("hello there Opera".split(/\b/).length)
Firefox says 5 , safari says 6, Opera says 15!
it really got me confused while writing some jQuery code!
now I use $.browser.opera ? /(\s+)/ :  /\b/ ; instead.
<span>
Ouch, I didn't realize there was that much of a difference!
</span></blockquote></div>
</span></div></blockquote></div>
<br clear="all">
</span></div><span>--
Ⓙⓐⓚⓔ - יעקב   ʝǡǩȩ   ᎫᎪᏦᎬ
</span></blockquote></div>
</span></div></blockquote></div>
<br clear="all">
--
Ⓙⓐⓚⓔ - יעקב   ʝǡǩȩ   ᎫᎪᏦᎬ

What result you are looking for?
\b and \s+ are radically different from each other. \b is an anchor that
matches no characters. \s+ is a pattern that matches one or more whitespace
characters.
It's kind of unusual to use a non-matching anchor like \b in a .split, so I
guess it's not too surprising that each browser gets it different.
Parenthesizing the \s+ changes things a lot too. The parentheses mean that
you want the matching delimiter strings to show up in the result array.
If you just want to split the string into words, delimited by any amount of
whitespace, use .split(/\s+/) - but is that the result you want?
"hello there Opera".split(/\s+/).length should be 3 in any browser. (I
added some spaces for illustration.)
-Mike

going for a split that when concatenated returns the original ... \b is what I tried... it works for all but opera. I didn't care that safari thinks there's an extra at the end... but when Opera came back with 15 (each character).... I laughed!
"hello       there      Opera" should split into 5 strings , 2 of which are the blanks.
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Michael Geary</b> <<a href="mailto:Mike@geary.com">
Mike@geary.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
What result you are looking for?
\b and \s+ are radically different from each other. \b is an anchor that
matches no characters. \s+ is a pattern that matches one or more whitespace
characters.
It's kind of unusual to use a non-matching anchor like \b in a .split, so I
guess it's not too surprising that each browser gets it different.
Parenthesizing the \s+ changes things a lot too. The parentheses mean that
you want the matching delimiter strings to show up in the result array.
If you just want to split the string into words, delimited by any amount of
whitespace, use .split(/\s+/) - but is that the result you want?
"hello there    Opera".split(/\s+/).length should be 3 in any browser. (I
added some spaces for illustration.)
-Mike
> javascript:alert("hello there Opera".split(/\b/).length)
>
> Firefox says 5 , safari says 6, Opera says 15!
>
> it really got me confused while writing some jQuery code!
>
> now I use $.browser.opera ? /(\s+)/ :  /\b/ ; instead.
>
> Ouch, I didn't realize there was that much of a difference!
</blockquote></div>
<br clear="all">
--
Ⓙⓐⓚⓔ - יעקב   ʝǡǩȩ   ᎫᎪᏦᎬ

IE would throw an exception and try to install adware on your computer. :P
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com">jakecigar@gmail.com
</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">WWIED? What would IE do?<div><span class="e" id="q_113182dea9572f91_1">
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Matt Stith</b> <<a href="mailto:seventoes@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">seventoes@gmail.com
</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
o.O damn, like you said, i didnt know there was that big of a difference!<div><span>
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
jakecigar@gmail.com</a>
> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">safari says 3 for
javascript:alert("hello there Opera".split(/(\s+)/).length)
<div><span>
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Matt Stith</b> <<a href="mailto:seventoes@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
seventoes@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">why not just use <span>/(\s+)/ in firefox too then? It gives me the correct number of 5.
</span><div><span>
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
jakecigar@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">javascript:alert("hello there Opera".split(/\b/).length)
Firefox says 5 , safari says 6, Opera says 15!
it really got me confused while writing some jQuery code!
now I use $.browser.opera ? /(\s+)/ :  /\b/ ; instead.
<span>
Ouch, I didn't realize there was that much of a difference!
</span></blockquote></div>
</span></div></blockquote></div>
<br clear="all">
</span></div><span>--
Ⓙⓐⓚⓔ - יעקב   ʝǡǩȩ   ᎫᎪᏦᎬ
</span></blockquote></div>
</span></div></blockquote></div>
<br clear="all">
</span></div><span class="sg">--
Ⓙⓐⓚⓔ - יעקב   ʝǡǩȩ   ᎫᎪᏦᎬ
</span></blockquote></div>

Isn't Javascript supposed to support Perl-compatible regular expressions?
Perl says the answer is:  5
perl -e 'print scalar split(/\b/, "hello there Opera")'
<div><span class="gmail_quote">
On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com">jakecigar@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
WWIED? What would IE do?<div><span class="e" id="q_113182e57ec72f91_1">
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Matt Stith</b> <<a href="mailto:seventoes@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
seventoes@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
o.O damn, like you said, i didnt know there was that big of a difference!<div><span>
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
jakecigar@gmail.com</a>
> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">safari says 3 for
javascript:alert("hello there Opera".split(/(\s+)/).length)
<div><span>
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Matt Stith</b> <<a href="mailto:seventoes@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
seventoes@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">why not just use <span>/(\s+)/ in firefox too then? It gives me the correct number of 5.
</span><div><span>
<div><span class="gmail_quote">On 6/10/07, <b class="gmail_sendername">Ⓙⓐⓚⓔ</b> <<a href="mailto:jakecigar@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
jakecigar@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">javascript:alert("hello there Opera".split(/\b/).length)
Firefox says 5 , safari says 6, Opera says 15!
it really got me confused while writing some jQuery code!
now I use $.browser.opera ? /(\s+)/ :  /\b/ ; instead.
<span>
Ouch, I didn't realize there was that much of a difference!
</span></blockquote></div>
</span></div></blockquote></div>
<br clear="all">
</span></div><span>--
Ⓙⓐⓚⓔ - יעקב   ʝǡǩȩ   ᎫᎪᏦᎬ
</span></blockquote></div>
</span></div></blockquote></div>
<br clear="all">
</span></div><span class="sg">--
Ⓙⓐⓚⓔ - יעקב   ʝǡǩȩ   ᎫᎪᏦᎬ
</span></blockquote></div>