I want to change image source according to a letter button that I click on. I guess that I need to use regular expression, but I am not sure how exactly it should look like.
<img id="logo_layer2" src="images/logo/logo_compass_a_layer2_red.png">
<ul id="letters">
<li>A</li>
<li>B</li>
<li>C</li>
...
</ul>
"a_layer2" part should change to "b_layer2", "e_layer2" and so on.
events: {
"click #letters li" : "change_letter"
},
change_letter: function(e) {
var letter = $(e.target).text();
var newimg = /images\/logo\/logo_\w*_\w{1}_layer\d_\w*.png/.replace((/\w{1}/,letter));
$("#logo_layer2").attr("src",newimg);
},
Try
$('#letters li').click(function(){
var txt =$(this).text().toLowerCase();
$('#logo_layer2').attr('src',function(_,old_src){
return old_src.replace(/_\w_/g,'_'+txt+'_');
});
});
$('#letters li').click(function(){
var txt =$(this).text().toLowerCase();
$('#logo_layer2').prop('src',function(_,old_src){
return old_src.replace(/_\w_/g,'_'+txt+'_');
});
});
Read .prop() vs .attr()
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