JQuery Add HTML and Event
-
06-09-2019 - |
Question
I currently have the following in JQuery 1.3.2
for (i = 0; i < totalPages; i++) {
var newDiv = $("<a href=\"#\">").append(i+1).click(function()
{
alert(i+1);
});
$('#pageLinks').append(newDiv).append(" ");
}
This outputs a list of numbers as required, but the alert when clicking the generated element is returning the totalPages value, not the value of i during the loop. How do I get the click event to alert the value of i instead?
Thanks
Solution
Try this
for (i = 0; i < totalPages; i++) {
var newDiv = $("<a href=\"#\">").append(i+1).click(function()
{
alert(this.text);
});
$('#pageLinks').append(newDiv).append(" ");
}
OTHER TIPS
This code should sort your problem out:
for (i = 0; i < totalPages; i++) {
var newDiv = $("<a href=\"#\">")
.append(i+1)
.click(
function() {
alert($(this).html());
}
);
$('#pageLinks').append(newDiv).append(" ");
}
If, say, you didn't have the text of the number as part of the link, I like to encode values like this into the id, which would give you this:
<body>
<div id="pageLinks"><!-- --></div>
<script>
var totalPages = 10, newDiv;
for (i = 0; i < totalPages; i++) {
var link = "<a href=\"#\" id=\"link-"+(i+1)+"\">"+(i+1)+"</a>";
newDiv = $(link).click(function() {
alert($(this).attr('id').split('-')[1]);
});
$('#pageLinks').append(newDiv).append(' ');
}
</script>
</body>
This is a scope related problem. You need to form a closure around the statements in the for loop using, what I call a scope guard. Something like this:
var totalPages = 10;
for (i = 0; i < totalPages; i++) {
(function() {
var no = i + 1;
var newDiv = $("<a href=\"#\">").append(i+1).click(function() {
alert(no);
});
$('#pageLinks').append(newDiv).append(" ");
})();
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