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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <script> var array = [] array[0] = '1' array[1] = '2' array[2] = 'END1' array[3] = '3' array[4] = 'L' array[5] = '5' array[6] = 'M' array[7] = 'S' array[8] = 'END2' array[9] = '6' array[10] = '7' array[11] = '8' array[12] = '9' array[13] = 'END3' var which = 'first' var first = [] var second = [] var third = [] for (index = 0; index < array.length; index++) { if (which == "first" && array[index] != "END1") { first.push(array[index]) } else if (which == "second" && array[index] != "END2") { second.push(array[index]) } else if (which == "third" && array[index] != "END3") { third.push(array[index]) } if (array[index] == "END1") { which = 'second' continue } else if (array[index] == "END2") { which = 'third' continue } else if (array[index] == "END3") { break } } console.log(first) console.log(second) console.log(third) </script> </body> </html>