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Is it possible to check if an array
A=[
"EMPRESA",
"CD_MAQ",
"DT_INI_MAQ"
]
Exists in another array
B=[
"EMPRESA",
"CD_MAQ",
"DT_INI_MAQ",
"CD_WKC",
"DT_INI_WKC"
]
I want to check if all entries in array A exists in B
400
You can use the includes() method in JavaScript to check if an item exists in an array. You can also use it to check if a substring exists within a string. It returns true if the item is found in the array/string and false if the item doesn't exist.
Use filter if you want to find all items in an array that meet a specific condition. Use find if you want to check if that at least one item meets a specific condition. Use includes if you want to check if an array contains a particular value. Use indexOf if you want to find the index of a particular item in an array.
Lodash helps in working with arrays, strings, objects, numbers, etc. The _. isObject() method is used to find whether the given value is an object or not. It returns a Boolean value True if the given value parameter is an object and returns False otherwise.
var A=[
"EMPRESA",
"CD_MAQ",
"DT_INI_MAQ"
];
var B=[
"EMPRESA",
"CD_MAQ",
"DT_INI_MAQ",
"CD_WKC",
"DT_INI_WKC"
];
if ( _.difference(A,B).length === 0){
// all A entries are into B
}<script src="https://cdn.jsdelivr.net/lodash/4.16.2/lodash.min.js"></script>Just use _.difference
134
You can use the intersection of the 2 arrays, and then compare to the original.
var A=[
"EMPRESA",
"CD_MAQ",
"DT_INI_MAQ"
];
var B=[
"EMPRESA",
"CD_MAQ",
"DT_INI_MAQ",
"CD_WKC",
"DT_INI_WKC"
];
console.log(_.isEqual(_.intersection(B,A), A));<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.16.2/lodash.js"></script>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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