Is there an easy way to fix this code:
title_1 = $(this).closest('tr').find('td').html();
title_2 = $(this).closest('tr').find('td').next().html();
title_3 = $(this).closest('tr').find('td').next().next().html();
question = question.replace(/{title_1}/g, title_1);
question = question.replace(/{title_2}/g, title_2);
question = question.replace(/{title_3}/g, title_3);
So it isn't so dully (repeated) and can cover n occurences of title_
pattern?
I'm a beginner Javascript developer and a complete regular expressions newbie (actually, they scare me! :|), so I'm unable to do this by myself. I've tried to look for an inspiration in different languages , but failed.
String.prototype.replace() could take a function as second parameter.
var $this = $(this);
question = question.replace(/\{title_(\d+)\}/g, function(match, n) {
return $this.closest('tr').find('td').eq(n - 1).html();
});
You can use a function in the replace, to get the value depending on what you find:
question = question.replace(/{title_(\d+)}/g, $.proxy(function(x, m){
return $(this).closest('tr').find('td:eq('+(m-1)+')').html();
}, this));
Try this , Generalized for getting all td tag's text value :
$("table").find("tr").each(function(){
$(this).find("td").each(function(){
alert($(this).html());
var txt=$(this).html();
//var pattern="/{"+txt+"}/g";
//question = question.replace(pattern, txt);
});
});
NB. In your question you have not mentioned the value for 'question' . please define value for 'question'
It seems to me that you want to get the text content of the first three cells of a table row and use it to replace the content of a string, and that this is an element somewhere in the row. So you can do:
var n = 3; // number of cells to get the text of
var textArray = [];
var tr = $(this).closest('tr')[0];
var reString;
for (var i=0; i<n; i++) {
reString = '{title_' + (i+1) + '}';
question = question.replace(reString, tr.cells[i].textContent);
}
If you wish to avoid jQuery's closest , you can use a simple function like:
function upTo(el, tagName) {
tagName = tagName.toLowerCase();
do {
el = el.parentNode;
if (el.tagName && el.tagName.toLowerCase() == tagName) {
return el;
}
} while (el.parentNode)
}
then:
var tr = upTo(this, 'tr');
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