I have a URL:
http://test.com/backgrounds/testimage.jpg
and I need to insert a 't_' at the beginning of the filename resulting in:
http://test.com/backgrounds/t_testimage.jpg
What would be the simplest way to do this in jQuery? Thanks for any help :)
Use a regex replacement to look for the last "/" and replace it with "/t_". Difficult to read with the escapes but:
"http://test.com/backgrounds/testimage.jpg".replace(/\/([^\/]*)$/, "/t_$1");
Swap out the string with whatever other string or variable you want to operate on. Alternately use something to parse the URL if you want more control or just prefer more readability.
Or alternately you could also remove the "/" from the pattern and the substitution. I was hoping JS had a non-regex replaceLast but that doesn't seem to be the case.
Don't even need jQuery...
var derp = 'http://test.com/backgrounds/testimage.jpg';
var split_derp = derp.splitOnLast('/');
var new_derp = split_derp[0] + '/t_' + split_derp[1].slice(1);
There's got to be a more compact/faster way, but that should work, I think.
