How can i concatenate variable between two strings in JQuery [duplicate]

Question

I am trying to concatenate var value between two strings to get my code work, but I'm getting error of unexpected token or invalid string while trying different ways: to concatenate using concat function or with dot between string.

Below the code:

var hash = window.location.hash;
var href = 'a[href="'.concat(hash) '"]';
alert(href);
if(hash != "") {
 jQuery(".tab-content-panel").hide();
 var id = jQuery(hash).show();
 jQuery('.tabs-custom-nav li a').removeClass('current');
//jQuery('.tabs-custom-nav li a[href="'.hash "]').addClass('current');

//alert(id);
  }
 //alert(hash);

Solution:stackoverflow.com/questions/25815382/…

Atul Mathew
– Atul Mathew

2020-03-03 07:44:13 +00:00
Commented Mar 3, 2020 at 7:44 — Atul Mathew
– Atul Mathew, Commented Mar 3, 2020 at 7:44

Terry · Accepted Answer · 2020-03-03 07:48:04Z

1

You don't need to use concat: in fact, you can't use it, since it is an Array prototype. You can either use + to concatenate strings:

var href = 'a[href="' + hash + '"]';

Or use ES6 template literals:

var href = `a[href="${hash}"]`;

edited Mar 3, 2020 at 7:48

answered Mar 3, 2020 at 7:43

Terry

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3 Comments

Kamran Hassan Over a year ago

thanks your answer is very impressive increased my knowledge regard javascript will accept answer after 7 minutes

Kamran Hassan Over a year ago

because few people know here the curiosity of getting solutions of problem. @Rajesh

Rajesh Dixit Over a year ago

@KamranHassan We are here to help. Sharing and closing gives you access to multiple solutions and long discussions from which you will learn a lot. With just answering, we are creating redundant content which will go unmonitored

Aaron · Accepted Answer · 2020-03-03 07:43:09Z

0

Why not use simple + to concat strings? But please be aware of security risks you may run into. If this does what you expect, fine. But keep security issues in mind.

var hash = window.location.hash;
var href = 'a[href="'+hash+'"]';
alert(href);

answered Mar 3, 2020 at 7:43

Aaron

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