En el codigo que se muestra a continuacion, tengo una duda del porque en la linea de codigo: pos2 = cadena.indexoF (separador,pos1); Por que indexOf () regresa valor de cero si el valor de separador …

Jan 1, 2022 · The indexOf function of a string does not return a character but rather returns the position of the first place that string or character is found, not the character itself.

Dec 20, 2017 · indexOf returns a -1 if the search is not in the string. This is because indexOf will return the position of the search term in the string. For example is another way of saying though I personaly …

17 I like Pablo's answer, but Array#indexOf and Array#map don't work on all browsers. Underscore will use native code if it's available, but has fallbacks as well. Plus it has the pluck method for doing …

Jan 3, 2017 · I am confused between the difference between the two function indexOf and find Index in an array. The documentation says findIndex - Returns the index of the first element in the array where

Dec 21, 2011 · I am learning Javascript and don't understand why the indexOf below returns -1: var string = "The quick brown fox jumps over the lazy dog"; console.log (string.indexOf("good"));

Oct 15, 2018 · Para achar o índice em um array de objetos, não se usa indexOf. O mais recomendado é usar o método findIndex, que aceita uma função como argumento para que você possa selecionar o …

Dec 27, 2013 · The .indexOf() method has an optional second parameter that specifies the index to start searching from, so you can call it in a loop to find all instances of a particular value:

May 2, 2020 · Can somebody explain the logic of .indexOf () in Javascript? Asked 5 years, 9 months ago Modified 5 years, 9 months ago Viewed 1k times

Feb 27, 2015 · From what I understand in your wording, I think that you think that indexOf is used to check if a certain element exists in an array. That is just a "side-effect" of indexOf but its actual …