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开源MQTT网关：EMQX vs Mosquitto - 创客硬件开发 - 清泛IT社区，为创新赋能！
...高要求的用户，我们建议您使用EMQX 企业版本。
来源：https://www.emqx.com/zh/blog/emq ... t-broker-comparison
Show all Elasticsearch aggregation results/buckets and not just 10
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const body = {
"size": 0, // Returning only aggregation results: https://www.elastic.co/guide/en/elasticsearch/reference/current/returning-only-agg-results.html
"aggs" : {
"langs": {
"composite" : {
"size": ITEMS_PER_PAGE,
"sourc...
application/x-www-form-urlencoded or multipart/form-data?
In HTTP there are two ways to POST data: application/x-www-form-urlencoded and multipart/form-data . I understand that most browsers are only able to upload files if multipart/form-data is used. Is there any additional guidance when to use one of the encoding types in an API context (no browser...
Is there an equivalent of CSS max-width that works in HTML emails?
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This is the solution that worked for me
https://gist.github.com/elidickinson/5525752#gistcomment-1649300, thanks to @philipp-klinz
<table cellpadding="0" cellspacing="0" border="0" style="padding:0px;margin:0px;width:100%;">
<tr><td colspan="3" ...
How to make the tab character 4 spaces instead of 8 spaces in nano?
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Setting the tab size in nano
cd /etc
ls -a
sudo nano nanorc
Link: https://app.gitbook.com/@cai-dat-chrome-ubuntu-18-04/s/chuaphanloai/setting-the-tab-size-in-nano
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Delete all local changesets and revert to tree
...revision
to kill any revision and its subtree in your local repository.
https://www.mercurial-scm.org/wiki/Strip
But don't try to use it for anything that has been already pushed.
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How to set NODE_ENV to production/development in OS X
...onfig() and read the values. Easily changed, easily read, cross platform.
https://www.npmjs.com/package/dotenv
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What does this symbol mean in IntelliJ? (red circle on bottom-left corner of file name, with 'J' in
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Find all IntelliJ (v15) symbols over here: https://www.jetbrains.com/idea/help/symbols.html
This site states that this icon stands for "Java class located out of the source root. Refer to the section Configuring Content Roots for details."
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How do I read the source code of shell commands?
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You can have it on github using the command
git clone https://github.com/coreutils/coreutils.git
You can find all the source codes in the src folder.
You need to have git installed.
Things have changed since 2012, ls source code has now 5309 lines
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Where does Visual Studio look for C++ header files?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1