If you have an array of strings in Javascript, is there a way to identify the common prefix among all the strings and then remove that prefix from each string?
For instance:
["05098701", "05012302", "0545621", "0509301"]
The common prefix in this case would be "05"
The resulting array after removing the common prefix would be
["098701", "012302", "45621", "09301"]
Searching like a human means checking with one character, then two, and so on until finding the common prefix in an array.
To achieve this, you can utilize the remove function to strip the prefix from each array item. This process can be accomplished by employing the map method along with a callback function.
array = ["05098701", "05012302", "0545621", "0509301"]
function longestCommonPrefix(arr){
var sortArr = arr.sort();
var arrFirstElem = arr[0];
var arrLastElem = sortArr[sortArr.length - 1];
var arrFirstElemLength = arrFirstElem.length;
var i= 0;
while(i < arrFirstElemLength && arrFirstElem.charAt(i) === arrLastElem.charAt(i)) {
i++;
}
return arrFirstElem.substring(0, i);
}
prefix = longestCommonPrefix(array);
array = array.map(function(item){
return item.substring(prefix.length, item.length);
});
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