What is the difference between using the delete operator on the array element as opposed to using the Array.splice method? For example: myArray = ['a', 'b', 'c', 'd']; delete myArray[1]; // or myArray.splice (1,...
I'm attempting the following: var a1 = ['a', 'e', 'f']; // [a, e, f] var a2 = ['b', 'c', 'd']; // [b, c, d] a1.splice(1, 0, a2); // expected [a, b, c, d, e, f] //...
I just want to confirm if the following two Javascript statements produces the same results, as it seems to me: First: var element = my_array.splice(0,1)[0]; Second: var element = my_array.shift(); I want to substitute the first by the second,...
I've been trying to implement a function where given with two arrays, array1's elements is used as conditions to filter out elements in array2. For instance: array1= [apple, grapes, oranges] array2= [potato, pears, grapes, berries, apples...
In the CoffeeScript docs for array splicing, what is the purpose of the trailing , _ref? CoffeeScript: numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] numbers[3..6] = [-3, -4, -5, -6] Compiles to: var numbers, _ref; numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8...
I've been working for a while on this function but i cannot figure out why even if I'm using .splice() I don't get a modified array. I'm providing the index at which to start changing the array "i", the number of elements to r...
Altough searched everywhere, could not find a solution I have a problem with deleting the CORRECT row from the list. For example I have below array: $scope.rows = [{ "ID": 12, "customer": "abc", ...
var newlist = list.slice( 0, pos ).concat( tasks ).concat( list.slice( pos ) ); This makes me shudder just looking at it....
I have following code: var a = [{a: 1}, {a: 2}, {a: 3}]; a.map(function (item, index) { console.log('call'); if (index < 1) { a.splice(index, 1); } }); But call is printed only two times, and I expect to be printed three times...
Suppose I have an array like this: myArray = ["a","b","c","d","e"] And I want to loop through it to find specific values and remove them. for(var i=0;i<myArray.length;i++){ if(myArray[i] == "b...
©2020 All rights reserved.