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Javascript Regex: How to put a variable inside a regular expression?
...ex = new RegExp(`ReGeX${testVar}ReGeX`);
...
string.replace(regex, "replacement");
Update
Per some of the comments, it's important to note that you may want to escape the variable if there is potential for malicious content (e.g. the variable comes from user input)
ES6 Update
In 2019, this woul...
What does an exclamation mark mean in the Swift language?
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What does it mean to "unwrap the instance"? Why is it necessary?
As far as I can work out (this is very new to me, too)...
The term "wrapped" implies we should think of an Optional variable as a present, wrapped in shiny paper, which m...
“find: paths must precede expression:” How do I specify a recursive search that also finds files in
I am having a hard time getting find to look for matches in the current directory as well as its subdirectories.
6 Answe...
Redis - Connect to Remote Server
...opics/quickstart on my Ubuntu 10.10 server. I'm running the service as dameon (so it can be run by init.d)
7 Answers
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git produces Gtk-WARNING: cannot open display
...ights and after running git push origin master I get the following error message:
4 Answers
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Find and replace in file and overwrite file doesn't work, it empties the file
...G_TO_REPLACE_IT/g index.html
Without the .bak the command will fail on some platforms, such as Mac OSX.
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Mailto links do nothing in Chrome but work in Firefox?
...e mailto links we're embedding in our website fail to do anything in Chrome, though they work in Firefox.
16 Answers
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Loop through a date range with JavaScript
...y causes the date to roll over to the next month if necessary, and without messing around with milliseconds. Daylight savings aren't an issue either.
var now = new Date();
var daysOfYear = [];
for (var d = new Date(2012, 0, 1); d <= now; d.setDate(d.getDate() + 1)) {
daysOfYear.push(new Date...
How can one see the structure of a table in SQLite? [duplicate]
...d use its special dot commands:
.tables will list tables
.schema [tablename] will show the CREATE statement(s) for a table or tables
There are many other useful builtin dot commands -- see the documentation at http://www.sqlite.org/sqlite.html, section Special commands to sqlite3.
Example:
sql...
Bad class file magic or version
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my JAVA_HOME variable changed to Java 1.8 and I got this error message when compiling a pure java module as a dependency of my android project.
build.gradle of the java module
apply plugin: 'java'
Solution #1: Quick an dirty
I fix...