I want to parse javascript variable from strings. Something like that,
var string = "<script>window.arr=[1, 2.0, false]</script>";
Is there any way I can get the contents of a single variable from here?
//something like
function getVarContent(variable, string){
var re = new RegExp('');
return eval(re.exec(string))
}
getVarContent('arr', string)
Maybe overkill for a simple use with a known string, but if you need to support general parsing, you can use the DOMParser if your environment supports it. (See RegEx match open tags except XHTML self-contained tags for reasons why regex may not be the answer)
[insert all the usual caveats about eval()ing strings]
var parser = new DOMParser();
var string = "<script>window.arr=[1, 2.0, false]<\/script>";
var doc = parser.parseFromString(string, "text/html");
var script = doc.querySelector('script')
eval(script.innerHTML)
console.log(window.arr)
you should put
var string = "<script>window.arr=[1, 2.0, false]</script>";
//only valid letters
var getVar = string.match(/\[[[0-9,.a-z ]+]/g);
console.log(getVar);
var array = JSON.parse(getVar);
console.log(array);
