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Getting the error “Missing $ inserted” in LaTeX
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The "Missing $ inserted" is probably caused by the underscores and bars. These characters in LaTeX have special meaning in math mode (which is delimited by $ characters). Try escaping them; e.g. update\_element instead of update_element.
However, if you're trying to ...
What is normalized UTF-8 all about?
...ased on the space/speed trade-off applicable, or based on what is required by something you are inter-operating with.
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Using CSS :before and :after pseudo-elements with inline CSS?
...ts and pseudo-classes in this aspect is that properties that are inherited by default will be inherited by :before and :after from the generating element, whereas pseudo-class styles just don't apply at all. In your case, for example, if you place text-align: justify in an inline style attribute for...
How to output messages to the Eclipse console when developing for Android
...ut to the console, Log will output to LogCat which you can find in Eclipse by going to: Window->Show View->Other…->Android->LogCat
Have a look at the reference for Log.
The benefits of using LogCat are that you can print different colours depending on your log type, e.g.: Log.d print...
HTTP handler vs HTTP module
...Every station (Module) contributes to HttpContext in some way as it passes by.
– Duanne
Jun 16 '16 at 14:48
This is an...
GitHub clone from pull request?
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You can clone the branch you want by using the -b option and for pull request:
git clone https://github.com/user_name/repo_name.git -b feature/pull_request_name dir_name
In your case, the branch you want to clone is the source branch of the pull request (f...
How do I verify/check/test/validate my SSH passphrase?
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You can verify your SSH key passphrase by attempting to load it into your SSH agent. With OpenSSH this is done via ssh-add.
Once you're done, remember to unload your SSH passphrase from the terminal by running ssh-add -d.
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querySelector, wildcard element match?
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object returned by querySelectorAll does not necessarily support filter on all browsers(as it is not always a regular javascript array). Make sure to check this assertion in production, either before the script is generated(if the script is ...
ERROR: permission denied for sequence cities_id_seq using Postgres
... allows the use of the currval and nextval functions.
Also as pointed out by @epic_fil in the comments you can grant permissions to all the sequences in the schema with:
GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO www;
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Using numpad in Vi (Vim) via PuTTY
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I'd also love to know why it's not enabled by default. Does it break numpad usage in any other application? the.earth.li/~sgtatham/putty/0.60/htmldoc/… BTW disabling app keypad mode also fixes that "," is being entered in bash when you press numpad "+".
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