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How to check if a string is a valid JSON string in JavaScript without using Try/Catch
... The question was about not using try/catch.
If you do not mind to use it, read the answer below.
Here we just check a JSON string using a regexp, and it will work in most cases, not all cases.
Have a look around the line 450 in https://github.com/douglascrockford/JSON-js/blob/master/json2.js
Ther...
Bash history without line numbers
... Can we pipe in the output from the history command instead of reading the file?
– cwd
Aug 18 '11 at 15:45
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Git on Bitbucket: Always asked for password, even after uploading my public SSH key
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Its already answered above. I will summarise the steps to check above.
run git remote -v in project dir. If the output shows remote url starting with https://abc then you may need username password everytime.
So to change the rem...
Find() vs. Where().FirstOrDefault()
...ved into the database ) meanwhile FirstOrDefault will only look for what already have been saved
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postgres: upgrade a user to be a superuser?
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ALTER USER myuser WITH SUPERUSER;
You can read more at the Documentation
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Visual Studio 2012 - Intellisense sometimes disappearing / broken
...g the .suo file? There are several comments and up-voted answers in this thread that suggest, and so it seems like it would help others to have it in this main list. I proposed an edit to this question today to include that, but my edit was rejected (for reasons that leave me perplexed and a little ...
How to close this ssh tunnel? [closed]
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Best explanation I read in a while. This is very useful when accessing a remote database from locally installed environments like R for example. Works well with public / private key authentication. Not with passwords because I did not find a wa...
Override valueof() and toString() in Java enum
... You can also lazily build a map and reuse it, but beware of threading issues while building it.
– Maarten Bodewes
Jun 30 '14 at 9:07
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Heroku + node.js error (Web process failed to bind to $PORT within 60 seconds of launch)
... probably should be a worker process instead.
So, change your Procfile to read (with your specific command filled in):
worker: YOUR_COMMAND
and then also run on CLI:
heroku scale worker=1
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MySQL一次主从数据不一致的问题解决过程 - 数据库(内核) - 清泛网 - 专注C/...
...装
#安装依赖包 # yum install perl-DBI perl-DBD-MySQL perl-TermReadKey perl-Time-HiRes #安装工具 # wget percona.com/get/percona-toolkit.tar.gz # tar zxvf percona-toolkit-2.2.14.tar.gz # cd percona-toolkit-2.2.14 # perl Makefile.PL && make && make install
校验数据一致性
建...