I have an array a = ["APP","COM", "REJ" , "COM APP"] and b = [23,54,56,24]. A and B are of equal length. How to get all elements of array B, in which the values of array a contains VALUE as APP
here in the array a there is an APP in APP ,COM APP , how to return [23, 24] as an array.
Use Array#filter method along with String#indexOf method.
var a = ["APP", "COM", "REJ", "COM APP"],
b = [23, 54, 56, 24],
c = 'APP';
console.log(
b.filter(function(v, i) {
return a[i].indexOf(c) > -1;
})
)For exact word match then use RegExp#test method with word boundary regex .
var a = ["APP", "COM", "REJ", "COM APP"],
b = [23, 54, 56, 24],
c = /\bAPP\b/;
console.log(
b.filter(function(v, i) {
return c.test(a[i]);
})
)you can use tis code:
var a = ["APP", "COM", "REJ", "COM APP"],
b = [23, 54, 56, 24],
var find=[]
for(var key in b){
if(a[key].indexOf('APP')!=-1)
find.push(b[key])
}
console.log(find)
You may also do as follows;
var a = ["APP","COM", "REJ" , "COM APP"],
b = [23,54,56,24],
r = b.reduce((p,c,i) => a[i].includes("APP") ? p.concat(c) : p ,[]);
console.log(r);