带单引号和双引号的 JSON.parse 字符串？

Question

I am saving an array as json and parsing it again upon load. However, after adding HTML with both single and double quotes, this has stopped working.

How can I escape the quotes?

JSON.parse('[["",null,null,null,null,null,"","","<span onclick=insertRow()><i class='fa fa-plus-circle fa-lg'></i></span>"]]');

uncaught SyntaxError: missing ) after argument list

EDIT:

My string is saved in database using JSON.stringify. It ends up in the following format:

[["ad",null,true,false,true,false,"","","<span onclick=insertRow()><i class='fa fa-plus-circle fa-lg'></i></span>"]]

when Im loading it again, I do it like follows:

var phpsave = JSON.parse('<?php echo $result->save; ?>');

If im escaping the single quotes before saving, the escaping just dissappears upon loading..

Answer 1

You're dynamically producing Javascript source code. You need to ensure that what you're producing is syntactically valid. The easiest way to produce valid Javascript literals from PHP is using json_encode :

var phpsave = JSON.parse(<?php echo json_encode($result->save); ?>);
// look ma, no quotes!   ^                                       ^

But wait, aren't you passing JSON to your Javascript? Isn't JSON already valid Javascript? Why, yes, yes it is. So you can leave out that step:

var phpsave = <?php echo $result->save; ?>;

Of course, you might want to ensure that you're really passing valid JSON here first before you start outputting random Javascript code.

Answer 2

你可以像

 var r = JSON.parse('[["",null,null,null,null,null,"","","<span onclick=insertRow()><i class=\'fa fa- plus - circle fa- lg\'></i></span>"]]');