I had a problem with array like this. First, I have an array and a string and I must compare this array and this string. If this array has an element the same as the element of the string, I must create a new array which has this element. For example :
mang : ['Javascript', 'PHP', 'H PHP']
chuoi = "PHP"
When we compared "chuoi" and "mang", as you can see, we have "PHP", so I must create the array ['PHP']
here is my code (my idea)
function findStringsInArrayByKeyword(keyword, strings) {
var chuoi = "PHP";
var mang = ['Javascript', 'PHP', 'Học PHP'];
mang.forEach(function(a)){
if (a===chuoi) {
return [a];
}
}
}
But it still does not run, could you please give me some ideas for me? Thank you very much for your time.
forEach does not return any value. In this case you can use reduce
function findStringsInArrayByKeyword(keyword, strings) {
var chuoi = "PHP";
var mang = ['Javascript', 'PHP', 'Học PHP'];
return mang.reduce((acc, curr) => {
if (curr === chuoi) {
acc.push(curr);
}
return acc;
}, [])
}
console.log(findStringsInArrayByKeyword())