Replace double backslashes with a single backslash in javascript
This should do it: "C:\\backup\\".replace(/\\\\/g, '\\')
In the regular expression, a single \ must be escaped to \\, and in the replacement \ also.
[edit 2021] Maybe it's better to use template literals.
console.log(`original solution ${"C:\\backup\\".replace(/\\\\/g, '\\')}`)// a template literal will automagically replace \\ with \console.log(`template string without further ado ${`C:\\backup\\`}`);// but if they are escaped themselvesconsole.log(`Double escaped ${`C:\\\\backup\\\\`.replace(/\\\\/g, '\\')}`);// don't want to replace the second \\console.log(`not the second ${`C:\\\\backup\\\\`.replace(/\\\\/, '\\')}`);// don't want to replace the first \\console.log(`not the first ${`C:\\\\backup\\`.replace(/[\\]$/, '\\')}`);
Best is to use regex to replace all occurrences:
C:\\backup\\".replace(/\/\//g, "/")this returns: C:\backup\
OR
use split()
"C:\\backup\\".split();both produces your desired result
C:\backup\
console.log("using \"C:\\backup\\\".replace(/\/\//g, \"/\")")console.log("C:\\backup\\".replace(/\/\//g, "/"));console.log("Using \"C:\\backup\\\".split()");console.log("C:\\backup\\".split());