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Is it possible to have JavaScript split() start at index 1?
As of the official String.prototype.split() method there exist no way to start splitting a string from index 1 or for general from any index n, but with a little tweak in the way we use split(), we can achieve this functionality.
We followed the following approach −
We will create two arrays −
- One that is splitted from 0 to end --- ACTUAL
- Second that is splitted from 0 TO STARTPOSITION --- LEFTOVER
Now, we iterate over each element of leftover and splice it from the actual array. Thus, the actual array hypothetically gets splitted from STARTINDEX to END.
Example
const string = 'The quick brown fox jumped over the wall';
const returnSplittedArray = (str, startPosition, seperator=" ") => {
const leftOver = str.split(seperator, startPosition);
const actual = str.split(seperator);
leftOver.forEach(left => {
actual.splice(actual.indexOf(left), 1);
})
return actual;
}
console.log(returnSplittedArray(string, 5, " "));Output
["over", "the", "wall"]
Updated on: 18-Aug-2020
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