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【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
...多，下面总结应用特点支持自定义Profile，可以收发任意格式的数据，如01和00支持自定义设备，支持任意设备的连接和通信，例如智能蓝牙插座等。
提示：低功耗蓝牙的Profile均基于GATT（通用属性规范，后面会详解）之上，如H...
Easy way to print Perl array? (with a little formatting)
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# better than Dumper --you're ready for the WWW....
use JSON::XS;
print encode_json \@some_array
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How to design a product table for many kinds of product where each product has many parameters
...es. One extra column stores a BLOB of semi-structured data, in XML, YAML, JSON, or some other format. This BLOB allows you to store the attributes specific to each product type. You can use fancy Design Patterns to describe this, such as Facade and Memento. But regardless you have a blob of attr...
what is difference between success and .done() method of $.ajax
... It's worth noting that .success() does NOT get called when malformed JSON is sent back with a 200/OK status code. Specifically, I've run into an issue with webserver backend code generating NaN values and serializing them as javascript NaN (i.e. as a symbol, not string 'NaN') which is actually...
Why am I seeing “TypeError: string indices must be integers”?
...github issues into a readable form. Using the advice on How can I convert JSON to CSV? I came up with this:
6 Answers
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angular.service vs angular.factory
...t.split(' ').join('+');
_finalUrl = baseUrl + _artist + '&callback=JSON_CALLBACK';
return _finalUrl
}
return service;
});
Here you’ll notice we’re not attaching those variables/function to ‘service’. We’re simply creating them in order to either use or modify them later....
how to set textbox value in jquery
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let r= await(await fetch(url+'&prodid=' + x + '&qbuys=' + y)).json(); // return json-object
console.log(r);
subtotal.value= r.length; // example value from json
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<for...
When to Redis? When to MongoDB? [closed]
...thing like key: [id of second hash]). Another idea would be to store it as JSON, which seems counter-intuitive to most people with a *SQL-background.
If you need really high performance.
Beating the performance Redis provides is nearly impossible. Imagine you database being as fast as your cache. T...
AJAX POST and Plus Sign ( + ) — How to Encode?
...hing else went fine in UTF8. I had good luck using with encodeURIComponent(JSON.stringify(rootObject)). Thank you!
– zneo
Aug 16 '11 at 19:25
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Keyboard shortcut to comment lines in Sublime Text 2
...rl+#"], "command": "reindent" } Is there an issue using the # character in JSON?
– Graham R. Armstrong
Apr 10 '15 at 15:42
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