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Why is using the JavaScript eval function a bad idea?
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agree. Sometimes eval is ok e.g. for JSON responses from webservices
– schoetbi
Jan 3 '11 at 15:17
41
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What's the difference between UTF-8 and UTF-8 without BOM?
... to
identify the encoding as UTF-8. [emphasis added]
BOM is illegal in JSON
See RFC 7159, Section 8.1:
Implementations MUST NOT add a byte order mark to the beginning of a JSON text.
BOM is redundant in JSON
Not only it is illegal in JSON, it is also not needed to determine the character...
How can I install an older version of a package via NuGet?
I want to install an older version of a package ( Newtonsoft.Json ). But NuGet rolls back:
5 Answers
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How to save the output of a console.log(object) to a file?
I tried using JSON.stringify(object) , but it doesn't go down on the whole structure and hierarchy.
9 Answers
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jQuery AJAX cross domain
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Use JSONP.
jQuery:
$.ajax({
url:"testserver.php",
dataType: 'jsonp', // Notice! JSONP <-- P (lowercase)
success:function(json){
// do stuff with json (in this case an array)
alert("Success");...
How to store Node.js deployment settings/configuration files?
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I use a package.json for my packages and a config.js for my configuration, which looks like:
var config = {};
config.twitter = {};
config.redis = {};
config.web = {};
config.default_stuff = ['red','green','blue','apple','yellow','orange'...
How do you clone an Array of Objects in Javascript?
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As long as your objects contain JSON-serializable content (no functions, no Number.POSITIVE_INFINITY, etc.) there is no need for any loops to clone arrays or objects. Here is a pure vanilla one-line solution.
var clonedArray = JSON.parse(JSON.stringify(no...
Making HTTP Requests using Chrome Developer tools
... now quite easy to make HTTP requests from the devtools console.
To GET a JSON file for instance:
fetch('https://jsonplaceholder.typicode.com/posts/1')
.then(res => res.json())
.then(console.log)
Or to POST a new resource:
fetch('https://jsonplaceholder.typicode.com/posts'...
How to get xdebug var_dump to show full object/array
... @AnriëtteMyburgh It really depends on your code. Non-complex arrays or JSON may be fine with 5 - 10 is probably more than adequate, but if you want to deeply examine Symfony framework objects, you may be better off with no limits. No suggestion is one-size-fits-all.
– Mich...
Uppercase Booleans vs. Lowercase in PHP
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If you intend to use JSON, then RFC7159 says:
The literal names MUST be lowercase. No other literal names are allowed.
From the list of backward incompatible changes in PHP 5.6:
json_decode() now rejects non-lowercase variants of the JSON lite...