Each must be a legal JavaScript identifier or a destructuring binding pattern. You can use the filter() method to remove elements from an array based on a certain condition. var name1 var name1 value1 var name1 value1, name2 value2 var name1, name2 value2 var name1 value1, name2, /, / nameN valueN nameN. Here is the code I have so far: const animals hippo, tiger, lion, seal. Then I try to splice the animals array from sIndex + 1, apply findIndex () and then update sIndex with the value returned. This method allows you to filter an array and return a new array with only the elements that meet a certain criteria. findIndex () method to find the first animal name beginning with s and save its value to a variable named sIndex. You can check the compatibility table on MDN for more information. Advertencia: Las instrucciones deberán ser ordenadas correctamente para conseguir la salida esperada a los ejemplos. const a 7 document.writeln('a es ' + a + '.') Las siguientes instrucciones demuestra como se comporta const. However, it is not yet widely supported by browsers or environments. El siguiente ejemplo produce una salida 'a es 7.' js. Instead, it returns a new array with some elements removed and/or replaced at a given index. There’s a new proposed toSpliced() method is similar to the splice() method, but it does not modify the original array. log (arr ) // // remove 6 from the arrayĬonsole. log (arr ) // // replace the third and fourth elements with "a" and "b"Īrr. log (arr ) // // remove the first element of the arrayĬonsole. Deleted elements are visited as if they were undefined.Var arr = // add 6 and 7 at the end of the arrayĪrr.
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