Explore an array library in JavaScript

Question

Explore an array library in JavaScript

How can I access elements in a list of arrays separated by commas?

[
    ["service_state", "service_description", "service_icons", "svc_plugin_output", "svc_state_age", "svc_check_age", "perfometer"],
    ["OK", "Check_MK", "", "OK- Agent version 1.2.4p4, execution time 0.1 sec", "2017-05-01 21:11:33", "13 sec", "0.1s"]
]

I need to work with more than two arrays in the string and I'm not sure how to navigate through them using JavaScript.

Any assistance on this matter would be highly appreciated.

javascript arrays

Answer 1

Answer №1

For more details, you can visit: https://jsfiddle.net/w2amcpbq/ or refer to the code snippet below:

var multiArr = [
  [
    "service_state",
    "service_description",
    "service_icons",
    "svc_plugin_output",
    "svc_state_age",
    "svc_check_age",
    "perfometer"
  ],
  [
    "OK",
    "Check_MK",
    "",
    "OK - Agent version 1.2.4p4, execution time 0.1 sec",
    "2017-05-01 21:11:33",
    "13 sec",
    "0.1s"
  ]
];

var i = 0,
  arrLength = multiArr.length;
for (i; i < arrLength; i++) {
  var nestedArr = multiArr[i];
  console.log(nestedArr);
  for (var j = 0; j < nestedArr.length; j++) {
    console.log(nestedArr[j]);
  }
}

Answer 2

For more details, you can visit: https://jsfiddle.net/w2amcpbq/ or refer to the code snippet below:

var multiArr = [
  [
    "service_state",
    "service_description",
    "service_icons",
    "svc_plugin_output",
    "svc_state_age",
    "svc_check_age",
    "perfometer"
  ],
  [
    "OK",
    "Check_MK",
    "",
    "OK - Agent version 1.2.4p4, execution time 0.1 sec",
    "2017-05-01 21:11:33",
    "13 sec",
    "0.1s"
  ]
];

var i = 0,
  arrLength = multiArr.length;
for (i; i < arrLength; i++) {
  var nestedArr = multiArr[i];
  console.log(nestedArr);
  for (var j = 0; j < nestedArr.length; j++) {
    console.log(nestedArr[j]);
  }
}

Answer 3

Answer №2

If you want to access a multidimensional array, simply use the following syntax:

array[0][0] to retrieve the first element of the first sub-array

It remains the same even for arrays with 3 levels of depth

array = [ [ [ 1, 2, 3 ], [ 4, 5, 6 ] ], 7 ];

Using array[0][1][1] will return 5

Answer 4

If you want to access a multidimensional array, simply use the following syntax:

array[0][0] to retrieve the first element of the first sub-array

It remains the same even for arrays with 3 levels of depth

array = [ [ [ 1, 2, 3 ], [ 4, 5, 6 ] ], 7 ];

Using array[0][1][1] will return 5

Answer 5

Answer №3

If you need to iterate through all the elements and have a string initially, follow this example:

var text = '[["service_state","service_description","service_icons","svc_plugin_output","svc_state_age","svc_check_age","perfometer"],["OK","Check_MK","","OK - Agent version 1.2.4p4, execution time 0.1 sec","2017-05-01 21:11:33","13 sec","0.1s"]]';
var array = JSON.parse(text);

array.forEach(function(nested) {
  nested.forEach(function(el) {
    console.log(el);
  });
});

Answer 6

If you need to iterate through all the elements and have a string initially, follow this example:

var text = '[["service_state","service_description","service_icons","svc_plugin_output","svc_state_age","svc_check_age","perfometer"],["OK","Check_MK","","OK - Agent version 1.2.4p4, execution time 0.1 sec","2017-05-01 21:11:33","13 sec","0.1s"]]';
var array = JSON.parse(text);

array.forEach(function(nested) {
  nested.forEach(function(el) {
    console.log(el);
  });
});

Answer 7

Answer №4

Here's a solution that should work:

forEachArray(multiArr, function(arr) {
    forEachValueInArray(arr, function(v) {
       displayValue(v);
    });
});

Answer 8

Here's a solution that should work:

forEachArray(multiArr, function(arr) {
    forEachValueInArray(arr, function(v) {
       displayValue(v);
    });
});

Answer 9

Answer №5

Consider a multidimensional array as a grid with rows and columns. To access specific elements, use the notation array[row][column].

For instance:

var arr = [[0,1,2],[3,4,5]];
arr[0][0] //this is equal to 0
arr[0][1] //this is equal to 1
arr[1][0] //this is equal to 3

By applying this concept, you can iterate through the array using nested for loops (one loop inside another).

for(var i = 0; i < arr.length; i++) { // outer loop for rows
  for(var j = 0; j < arr.length; j++) { // inner loop for columns
    console.log(arr[i][j])
  }
}

Answer 10

Consider a multidimensional array as a grid with rows and columns. To access specific elements, use the notation array[row][column].

For instance:

var arr = [[0,1,2],[3,4,5]];
arr[0][0] //this is equal to 0
arr[0][1] //this is equal to 1
arr[1][0] //this is equal to 3

By applying this concept, you can iterate through the array using nested for loops (one loop inside another).

for(var i = 0; i < arr.length; i++) { // outer loop for rows
  for(var j = 0; j < arr.length; j++) { // inner loop for columns
    console.log(arr[i][j])
  }
}

Explore an array library in JavaScript

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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