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Regex: Specify “space or start of string” and “space or end of string”
...#the | means or. () is a capturing group.
/\b(stackoverflow)\b/
Also, if you don't want to include the space in your match, you can use lookbehind/aheads.
(?<=\s|^) #to look behind the match
(stackoverflow) #the string you want. () optional
(?=\s|$) #to look ahead.
...
Flexbox: center horizontally and vertically
...play: -webkit-flex;
display: flex;
align-items: center;
justify-content: center;
}
.row {
width: auto;
border: 1px solid blue;
}
.flex-item {
background-color: tomato;
padding: 5px;
width: 20px;
height: 20px;
margin: 10px;
line-height: 20px;...
When increasing the size of VARCHAR column on a large table could there be any problems?
...rom (200 to 1200) on a table with about 500k rows. What I need to know is if there are any issues I have not considered.
...
Why start a shell command with a backslash?
...
alias curl='curl --some --default --options'
If you have an alias for curl and you don't want to use it, putting a backslash in front disables the alias and runs the curl binary directly.
Note that this only applies at an interactive shell. Aliases don't take effect in...
Passing variables to the next middleware using next() in Express.js
... supported or documented. res.locals is guaranteed to hold state over the life of a request.
res.locals
An object that contains response local variables scoped to the
request, and therefore available only to the view(s) rendered during
that request / response cycle (if any). Otherwise, this...
Newline in string attribute
...alue to represent a literal. In this case, I used the line feed (char 10). If you want to do "classic" vbCrLf, then you can use &#x0d;&#x0a;
By the way, note the syntax: It's the ampersand, a pound, the letter x, then the hex value of the character you want, and then finally a semi-colon.
...
How to copy a dictionary and only edit the copy
..., all references to it keep referring to the object in its current state.
If you want to copy the dict (which is rare), you have to do so explicitly with
dict2 = dict(dict1)
or
dict2 = dict1.copy()
share
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How do I push a new local branch to a remote Git repository and track it too?
...
It's also worth noting that if you have an existing tracking branch already set on the branch you're pushing, and push.default is set to upstream, this will not do what you think it will do. It will try to push over the existing tracking branch. Use: gi...
Undo changes in entity framework entities
...e common way to "revert changes" is disposing context and reload entities. If you want to avoid reloading you must create clones of entities and modify those clones in new object context. If user cancel changes you will still have original entities.
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Best Practices: working with long, multiline strings in PHP?
Note: I'm sorry if this is an extremely simple question but I'm somewhat obsessive compulsive over the formatting of my code.
...