谁能告诉我为什么我收到Uncaught SyntaxError：意外的字符串？

Question

This is my code below.

The error I get above will not move, I am trying lots of different variants.

var $token = $(this).attr('id');
var $itemId = $(this).find('input.id').val();
var $instaUrl = 'https://api.instagram.com/v1/media/"'.$itemId.'"/likes?access_token="'.$token.'"';
console.log($instaUrl);

Thanks

Answer 1

JavaScript uses + for string concatenation:

var $token = $(this).attr('id');
var $itemId = $(this).find('input.id').val();
var $instaUrl = 'https://api.instagram.com/v1/media/"'+$itemId+'"/likes?access_token="'+$token+'"';
console.log($instaUrl);

You used the dot ( . ) from PHP.

By the way, you do not need to use a dollar sign for variables in JavaScript!

Answer 2

Use + for concatenation in javascript.It can also be done using the following methods:

a. The addition operator ( + )

b. The assignment operator ( += )

c. The built-in concat method

ar $token = $(this).attr('id');
var $itemId = $(this).find('input.id').val();
var $instaUrl = 'https://api.instagram.com/v1/media/"'+$itemId+'"/likes?access_token="'+$token+'"';
console.log($instaUrl);