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How do I (or can I) SELECT DISTINCT on multiple columns?
...ata type of the column must support the <> operator. Some types like json don't. See:
How to query a json column for empty objects?
Subtle difference in NULL handling
This query (unlike the currently accepted answer by Joel) does not treat NULL values as equal. The following two rows for ...
What does it mean to hydrate an object?
...uate the meaning of those concepts from hydration:
Serialize
console.log(JSON.stringify({ foo: true, bar: true, baz: true }));
Deserialize
console.log(JSON.parse('{"foo":true,"bar":true,"baz":true}'));
share
|...
What's wrong with using $_REQUEST[]?
...le, I have a web service which can return responses in URLEncoding, XML or JSON. The application decides how to format the response by checking the HTTP_ACCEPT header, but can be coerced into one specifically by sending the format parameter.
When checking the content of the format parameter, it co...
Have Grunt generate index.html for different setups
..." );
// Project configuration.
grunt.initConfig({
pkg: '<json:package.json>',
meta: {
banner: '/*! <%= pkg.name %> - v<%= pkg.version %> - ' +
'<%= grunt.template.today("yyyy-mm-dd") %> */'
},
jsFiles: jsFiles,
// fil...
逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...
...令，但最初我的出发点错了：完全依靠人工去读代码而不使用更便捷的gdb去调试和查看内存和寄存器的情况。
比方说，困扰了我好几天之久的strings_not_equal函数。现在看来，函数的名字已再清楚不过的体现了函数的意义。而我...
App Inventor 2 中的响应式设计 · App Inventor 2 中文网
...有限公司 版权所有，未经书面许可，不得转载或使用 隐私策略和使用条款 技术支持 service@fun123.cn
Convert JavaScript string in dot notation into an object reference
...yHandler);
}
Demo:
var obj = {a:{b:{c:1, d:2}}};
console.log("obj is:", JSON.stringify(obj));
var objHyper = hyperIndexOf(obj);
console.log("(proxy override get) objHyper['a.b.c'] is:", objHyper['a.b.c']);
objHyper['a.b.c'] = 3;
console.log("(proxy override set) objHyper['a.b.c']=3, now obj is:"...
What is a correct mime type for docx, pptx etc?
...
Here is the (almost) complete file extensions's MIME in a JSON format.
Just do example: MIME["ppt"], MIME["docx"], etc
{"x3d": "application/vnd.hzn-3d-crossword", "3gp": "video/3gpp", "3g2": "video/3gpp2", "mseq": "application/vnd.mseq", "pwn": "application/vnd.3m.post-it-notes", "...
How do search engines deal with AngularJS applications?
...the initial payload into the first response from the server, possibly as a JSON object. This allows the Search Engine to render the page without executing the AJAX call.
There is some evidence to suggest that Google might not execute AJAX requests. More on this here:
https://web.archive.org/web/20...
Git Symlinks in Windows
...member to check the symlink checkbox and clone my project again. My tslint.json file referencing the file in the parent directory still contains ../tslint.json. Pity, because this really looked like the easiest of all of the solutions proposed in there.
– Jan Aagaard
...