CODEWITHSUNDEEP
javascriptjquery
Phillip Senn
Phillip Senn

Reputation: 47595

How is a non-breaking space represented in a JavaScript string?

This apparently is not working:

X = $td.text();
if (X == ' ') {
  X = '';
}

Is there something about a non-breaking space or the ampersand that JavaScript doesn't like?

Upvotes: 195

Views: 215316

Answers (4)

Andrew Moore
Andrew Moore

Reputation: 95334

  is a HTML entity. When doing .text(), all HTML entities are decoded to their character values.

Instead of comparing using the entity, compare using the actual raw character:

var x = td.text();
if (x == '\xa0') { // Non-breakable space is char 0xa0 (160 dec)
  x = '';
}

Or you can also create the character from the character code manually it in its Javascript escaped form:

var x = td.text();
if (x == String.fromCharCode(160)) { // Non-breakable space is char 160
  x = '';
}

More information about String.fromCharCode is available here:

fromCharCode - MDC Doc Center

More information about character codes for different charsets are available here:

Windows-1252 Charset
UTF-8 Charset

Upvotes: 405

Jacob Mattison
Jacob Mattison

Reputation: 51052

The jQuery docs for text() says

Due to variations in the HTML parsers in different browsers, the text returned may vary in newlines and other white space.

I'd use $td.html() instead.

Upvotes: 0

Brad Christie
Brad Christie

Reputation: 101604

Remember that .text() strips out markup, thus I don't believe you're going to find   in a non-markup result.

Made in to an answer....

var p = $('<p>').html('&nbsp;');
if (p.text() == String.fromCharCode(160) && p.text() == '\xA0')
    alert('Character 160');

Shows an alert, as the ASCII equivalent of the markup is returned instead.

Upvotes: 9

JAAulde
JAAulde

Reputation: 19560

That entity is converted to the char it represents when the browser renders the page. JS (jQuery) reads the rendered page, thus it will not encounter such a text sequence. The only way it could encounter such a thing is if you're double encoding entities.

Upvotes: 2

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