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slice and splice 🔪

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`@@ -22,6 +22,7 @@ All of these examples are from FreeCodeCamp's [course](https://www.freecodecamp.`
`22`	`22`	`- [9. Finders Keepers](#9-finders-keepers)`
`23`	`23`	`- [10. Boo who](#10-boo-who)`
`24`	`24`	`- [11. Title Case a Sentence](#11-title-case-a-sentence)`
	`25`	`+ - [12. Slice and Splice](#12-slice-and-splice)`
`25`	`26`
`26`	`27`	`## Basic Algorithm Scripting`
`27`	`28`
`@@ -385,3 +386,29 @@ function titleCase(str) {`
`385`	`386`
`386`	`387`	`titleCase("I'm a little tea pot");`
`387`	`388`	```
	`389`	`+`
	`390`	`+### 12. Slice and Splice`
	`391`	`+`
	`392`	`+_Difficulty: Beginner_`
	`393`	`+`
	`394`	`+You are given two arrays and an index.`
	`395`	`+`
	`396`	`+Copy each element of the first array into the second array, in order.`
	`397`	`+`
	`398`	`+Begin inserting elements at index n of the second array.`
	`399`	`+`
	`400`	`+Return the resulting array. The input arrays should remain the same after the function runs.`
	`401`	`+`
	`402`	`+---`
	`403`	`+`
	`404`	`+#### Solution`
	`405`	`+`
	`406`	+```js
	`407`	`+function frankenSplice(arr1, arr2, n) {`
	`408`	`+ let localArr = [...arr2];`
	`409`	`+ localArr.splice(n, 0, ...arr1);`
	`410`	`+ return localArr;`
	`411`	`+}`
	`412`	`+`
	`413`	`+frankenSplice([1, 2, 3], [4, 5], 1);`
	`414`	+```

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