If I start with a number array as follows:
var numberarr = [1, 2, 3, 4, 5];
How can I transform it into the following array by decreasing each element by 1?
var numberarr2 = [0, 1, 2, 3, 4];
If I start with a number array as follows:
var numberarr = [1, 2, 3, 4, 5];
How can I transform it into the following array by decreasing each element by 1?
var numberarr2 = [0, 1, 2, 3, 4];
One method to accomplish this is by utilizing the .map( )
function.
var updatedNumbers = numbers.map( function(item) {
return item * 2;
} );
Give this a try:
// Initialize an empty array to store updated values
var newNumberArray = [];
// Loop through each element in the original array
for(var j = 0; j < originalNumberArray.length; j++) {
// Decrement the value of the original array element and add it to the new array
newNumberArray.push(originalNumberArray[j] - 1);
}
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