what does a backslash do to a javascript string code example

Example 1: javascript backslash

You have to type a double backslash. Like: \\

Example 2: add a slash to string in javascript

var str = 'USDYEN'
// add a / in between currencies
// var newStr = str.slice(0, 3) + ' / ' + str.slice(3)

// var newStr = str.slice(3) // removes the first 3 chars
// var newStr = str.slice(0,3) // removes the last 3 chars
var newStr = str.slice(0,3) + ' / ' + str.slice(3) // removes the first 3 and adds the last 3

console.log(newStr)
// => USD / YEN

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