#Js splice return value code#
In the code below, colors.splice(0,1) removes the first element ("red") from the array colors. Example 1: Removing the first element from an array. Also, don't forget to give each of these functions a unique name. I recommend creating separate functions to try out each of the examples below. So you have to copy and paste each of the code snippets below into a function before you run them. In Apps Script, you can only run functions. If no elements are deleted then the return value will be an empty array. One or more values to insert into the array.Īn array containing deleted values is returned by the splice() function. If this value is not specified or if it is greater than the number of elements after the start position, then all elements beyond the start position will be deleted. If this value is 0 or negative, no elements will be deleted. The number of elements to delete beginning at the starting point specified using the start parameter. This will be clear from the examples below. If it is negative, the starting position is determined by starting at the end of the array and moving towards the beginning of the array. If this value is greater than the length of the array, it will be set to the length of the array. The array index at which to splice the array. Syntax array.splice(start, numElementsToDelete, item1, item2, …itemN) Parameters
#Js splice return value how to#
How to create and run simple Apps Script scripts using the script editor in Google Sheets. What arrays are and how to use them in Apps Script.
The definition of '' in that specification.This tutorial assumes that you're familiar with: myFish is // removed is Specifications Specification Removed = myFish.splice(myFish.length -3, 2) myFish is // removed is // myFish is // removes 2 elements from index 2 Removed = myFish.splice( 0, 2, ' parrot', ' anemone', ' blue') myFish is // removed is // myFish is // removes 2 elements from index 0, and inserts 'parrot', 'anemone' and 'blue' Removed = myFish.splice( 2, 1, ' trumpet') myFish is // removed is // myFish is // removes 1 element from index 2, and inserts 'trumpet' myFish is // removed is, no elements removed // myFish is // removes 1 element from index 3 removes 0 elements from index 2, and inserts 'drum' var removed = myFish.splice( 2, 0, ' drum') The following script illustrates the use of splice():Ĭopy Code var myFish = If you specify a different number of elements to insert than the number you're removing, the array will have a different length at the end of the call. If no elements are removed, an empty array is returned. If only one element is removed, an array of one element is returned. Return valueĪn array containing the deleted elements. If you don't specify any elements, splice() will only remove elements from the array. The elements to add to the array, beginning at the start index. If deleteCount is omitted, deleteCount will be equal to ( arr.length - start). If deleteCount is greater than the number of elements left in the array starting at start, then all of the elements through the end of the array will be deleted. In this case, you should specify at least one new element. If deleteCount is 0, no elements are removed. deleteCount An integer indicating the number of old array elements to remove. If negative, will begin that many elements from the end. If greater than the length of the array, actual starting index will be set to the length of the array. Parameters start Index at which to start changing the array (with origin 0).
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