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I have two arrays of AJAX (JSON) response:
One dimension:
[["fili","Chif"],["Bart","deme"],["Bomb","Jyui"],["Joiu","FDPi"],["Doen","abcd"],["drog","MAIC"],["Jasi"
,"abcd"],["Jere","Jibi"]]
Three dimensions:
[[["5","#"],["2","N"],["L","7"],["C","8"],["F","W"],["K","T"],["Q","E"],["Z","\/"]],[["B","O"],["$","P"
],["1","Y"],["H","R"],["3","%"],["I","U"],["M","4"],["A","9"]],[["J","X"],["Bye","G"],["D","V"],["Bye"
,"6"]]]
I try to check if an array is multidimensional but does not work:
if (typeof arr[0][0] != "undefined" && arr[0][0].constructor == Array) {
return true;
}
768
Look for array. shape: if it comes like (2,) means digit at first place but nothing after after comma,its 1D. Else if it comes like (2,10) means two digits with comma,its 2D.
JavaScript Array includes() The includes() method returns true if an array contains a specified value. The includes() method returns false if the value is not found.
To access an element of the multidimensional array, you first use square brackets to access an element of the outer array that returns an inner array; and then use another square bracket to access the element of the inner array.
Here is how you can create multidimensional arrays in JavaScript. let student1 = ['Jack', 24]; let student2 = ['Sara', 23]; let student3 = ['Peter', 24]; // multidimensional array let studentsData = [student1, student2, student3];
You need to check the first element of Array so use
if(arr[0].constructor === Array)
DEMO
alert("[[]] returns " + ([[]].constructor === Array))You can also check all elements in the array so I think it would be more right way in 2019
const is2dArray = array => array.every(item => Array.isArray(item));If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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