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8.2 My Splice created by smillaraaq - https://repl.it/HJLw/14
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function mySplice(arr,start,numEles){ | |
//remove item at 'start' | |
//remove numEles incl 'start' | |
//modify original array | |
//do not use splice | |
var tmpArray = []; | |
var modifiedElements=[]; | |
for(var i=0; i<arr.length;i++){ | |
if(i<start || i>start+numEles-1){ | |
tmpArray.push(arr[i]); | |
}else{ | |
modifiedElements.push(arr[i]); | |
} | |
} | |
myArray=tmpArray.slice(); | |
//console.log("arr", arr, "modifiedElements", modifiedElements); | |
return modifiedElements; | |
} | |
var myArray = [1,2,3]; | |
console.log("returned elements: ", mySplice(myArray, 1, 1)) // [2] | |
console.log(myArray) // [1,3] | |
/* SCHOOL SOLUTION | |
function mySplice(arr, start, deleteCount) { | |
var deletedArr = []; | |
var startElements = []; | |
//Remove members up to start | |
for (var i=0; i<start; i++) { | |
startElements.push(arr.shift()); | |
} | |
//Remove deleted elements | |
for (var j=0; j<deleteCount; j++) { | |
deletedArr.push(arr.shift()); | |
} | |
//Add start elements back into the original array | |
var startElementsLength = startElements.length; | |
for (var z=0; z<startElementsLength; z++) { | |
arr.unshift(startElements.pop()); | |
} | |
return deletedArr; | |
} | |
*/ |
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