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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...
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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Pandas: Looking up the list of sheets in an excel file
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You can still use the ExcelFile class (and the sheet_names attribute):
xl = pd.ExcelFile('foo.xls')
xl.sheet_names # see all sheet names
xl.parse(sheet_name) # read a specific sheet to DataFrame
see docs for parse for more options...
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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
...
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...
Collapse sequences of white space into a single character and trim string
... I'd be curious of a performance comparison of this to a regex replacement with a trim to remove the ends. On the one hand, you have a regex to deal with. On the other, you have a predicate. Either requires internal processing of the respective expressions.
– lilbyrdie
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Set Locale programmatically
...setLocale(locale);
Take in consideration that the minSkdVersion for this method is API 17.
Full example code:
@SuppressWarnings("deprecation")
private void setLocale(Locale locale){
SharedPrefUtils.saveLocale(locale); // optional - Helper method to save the selected language to SharedPrefere...
“File not found” when running new LibGDX project
...i
When you run Desktop Project
The application will fail the first time. Open the Run Configuration you just created and set the working directory to the android/assets/ directory!
link your desktop project to android assets folder?
Go to Run => Run Configurations.. => choose Desktop...