javascript tutorial - [Solved-5 Solutions] Safely turning a JSON string into an object - javascript - java script - javascript array
Problem :
How to Safely turning a JSON string into an object ?
Solution 1:
can do this unsafely with something like
var obj = eval("(" + json + ')');
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but that leaves us vulnerable to the json string containing other code, which it seems very dangerous to simply eval.
Solution 2:
JSON.parse(jsonString);
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Is a pure JavaScript approach so long as you can require a reasonably modern browser.
Solution 3:
The jQuery method is now deprecated. Use this method instead:
let jsonObject = JSON.parse(jsonString);click below button to copy the code. By JavaScript tutorial team
Solution 4:
Use simple code represented in the following link on MSDN .
var jsontext = '{"firstname":"Jesper","surname":"Aaberg","phone":["555-0100","555-0120"]}';
var contact = JSON.parse(jsontext);
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and reverse
var str = JSON.stringify(arr);
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Solution 5:
new Ajax.Request('/some_url', {
method:'get',
requestHeaders: {Accept: 'application/json'},
onSuccess: function(transport){
var json = transport.responseText.evalJSON(true);
}
});
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Calling evalJSON() with true as the argument sanitizes the incoming string.