For instance:
var array = ["apple", "banana", "cherry", "date", "elderberry", "fig"];
What is the best way to determine if "apple", "banana", and "cherry" are present in the array?
I attempted using the indexOf() method but struggled to check for multiple strings in the array...
To check if all elements in an array are present in another array, utilize Array.protoype.every and Array.prototype.indexOf as shown below:
["x", "y", "z"].every(function(currentItem) {
return targetArr.indexOf(currentItem) !== -1;
});
This code snippet will output true only when all elements in ["x", "y", "z"] exist in the targetArr.
Here is an example to consider:
let arrayOne = ["apple", "banana", "cherry", "date"];
for(let j=0; j<arrayOne.length;j++){
if(j===1){
console.log(arrayOne[j]);
}
}
Alternatively, you can try this:
let x = arrayOne.indexOf("cherry");
console.log(x);//2
let y = arrayOne.indexOf("banana");
console.log(y);//1
let z = arrayOne.indexOf("date");
console.log(z);//3
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