is there a straightforward method for searching within a div for a specific string and replacing it with another? I cannot use .replaceWith alone because there are other elements within the div I need to preserve. I've tried various javascript methods found here to no avail.
So something like:
$('#foo').find('this string').replaceWith('this other string');
for:
<div id="foo"><div id="child">Other Element</div>this string</div>
Thanks.
Try this:
var foo = $('#foo').html();
foo = foo.replace('this string', 'this other string');
$('#foo').html(foo);
html(..) like that will re-create DOM elements, meaning you would lose out on any previously attached data or events on those elements.
live()live() or delegate(). I've done this exact scenario and it's what I had to do.This replaces all occurrences:
var $foo = $('#foo'),
fooHtml = $foo.html();
$foo.html(fooHtml.replace(/this string/g, 'this other string'));
upsJust using html().replace() with match all results element attribute or tag name.
I face this issue also, my solution is similar to findAndReplace() function from http://james.padolsey.com/javascript/find-and-replace-text-with-javascript/ but using regular expression to get all textNode and search in each of them.
function epubSearch(query) {
var d = document.getElementsByTagName("body")[0];
var re = new RegExp(query, "gi");//pattern for keyword
var re0 = new RegExp("[>][^><]*[><]", "gi");//pattern to get textnode
d.innerHTML = d.innerHTML.replace(re0, function (text) {
// with each textNode, looking for keyword
return text.replace(re, "<span class=\"search-result\" style=\"background-color:red;\">$&</span>");
});
}
Here's a jQuery plugin I just wrote that provides safeReplace for collections.
(function($){
$.fn.safeReplace = function ( find, replacement ) {
return this.each(function(index, elem) {
var
queue = [elem],
node,
i;
while (queue.length) {
node = queue.shift();
if (node.nodeType === 1) {
i = node.childNodes.length;
while (i--) {
queue[queue.length] = node.childNodes[i];
}
} else if (node.nodeType === 3) {
node.nodeValue = node.nodeValue.replace( find, replacement );
}
}
});
};
})(jQuery);
And here's how you use it:
$('#foo').safeReplace( /this string/g, 'something else' );
I've only tested in FF 4, and only on the sample HTML input - more testing is recommended.
Hope this helps!
What's wrong with String.replace();?
e.g.
$("#div").html($("#div").html().replace("search string", "replace string"));
Or Exploded:
var $divElement = $("#div"); //Find the div to perform replace on
var divContent = $divElement.html(); //Get the div's content
divContent = divContent.replace("search string", "replace string"); //Perform replace
$divElement.html(divContent); //Replace contents of div element.
This one works as many times as your term appears and will not kill any of the important things that shouldn't be changed (stored in the excludes array).
usage: findAndReplace('dog','cat', document.getElementById('content'));
/* js find andreplace Based on http://james.padolsey.com/javascript/find-and-replace-text-with-javascript/ */
function findAndReplace(searchText, replacement, searchNode) {
if (!searchText || typeof replacement === 'undefined') {
return;
}
var regex = typeof searchText === 'string' ?
new RegExp(searchText, 'g') : searchText,
childNodes = (searchNode || document.body).childNodes,
cnLength = childNodes.length,
excludes = ['html','head','style','link','meta','script','object','iframe'];
while (cnLength--) {
var currentNode = childNodes[cnLength];
if (currentNode.nodeType === 1 &&
excludes.indexOf(currentNode.nodeName.toLowerCase() + ',') === -1) {
arguments.callee(searchText, replacement, currentNode);
}
if (currentNode.nodeType !== 3 || !regex.test(currentNode.data) ) {
continue;
}
var parent = currentNode.parentNode,
frag = (function(){
var html = currentNode.data.replace(regex, replacement),
wrap = document.createElement('div'),
frag = document.createDocumentFragment();
wrap.innerHTML = html;
while (wrap.firstChild) {
frag.appendChild(wrap.firstChild);
}
return frag;
})();
parent.insertBefore(frag, currentNode);
parent.removeChild(currentNode);
}
}
