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This is an odd one.
I have a list item, containing the text '13 May 2011'. I have a lot of these dates, and I want to use JQuery to search them by a free text input (they're not always dates), but I can't seem to search for anything if I put a space in the search box.
However,
li.text() // 13 May 2011
li.text().indexOf('13') // 0
li.text().indexOf('13 ') // -1
li.text().indexOf(' ') // -1
'13 May 2011'.indexOf('13') // 0
'13 May 2011'.indexOf('13 ') // 0
li.text() == '13 May 2011' // false
I've pasted my return text into a text-to-hex converter, and the space character is a '20' (32 in decimal, which is a space in ASCII), so it's not a funny space character.
Has anyone encountered this problem before? Does anyone have any other ideas?
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Use the test() method to check if a string contains whitespace, e.g. /\s/. test(str) . The test method will return true if the string contains at least one whitespace character and false otherwise.
To check if a string contains only spaces, use the test() method with the following regular expression /^\s*$/ . The test method will return true if the string contains only spaces and false otherwise.
The indexOf() method returns the position of the first occurrence of a value in a string. The indexOf() method returns -1 if the value is not found. The indexOf() method is case sensitive.
To set or get the text value of input or textarea elements, use the . val() method. To get the value of a script element, use the . html() method.
Answering my own question. Thanks to all those that helped me along the way by leaving comments!
All tests with this list item have worked as they should except the real version on my machine! For some reason, it's not a space, it's ASCII character 160 (a non-breaking space, HTML entity )
Further investigation shows
hex(li.text()) // 31 33 a0 4d 61 79 a0 32 30 31 31
li.text().indexOf('13'+String.fromCharCode(160)) // 0
I'm not going to question why, at least it works now :D
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