Having some trouble understanding why my numbers aren't giving me the correct equality in javascript.
I inserted a vector of numbers into an array in javascript...
const seen = [
[0,1]
];
console.log(contains(seen, [0,1]));
And then tried to do a simple comparison
const contains = function(arr, coordinate){
arr.forEach(element => {
if(element[0] == coordinate[0] && element[1] == coordinate[1]){
return true;
}
})
return false;
}
Im expecting my contains function to return true. Element is [0,1] and the coordinate im comparing to is also [0,1], yet when I try to compare with the following:
element[0] == coordinate[0] && element[1] == coordinate[1]
It ultimately returns false.
Full code:
const contains = function(arr, coordinate) {
arr.forEach(element => {
if (element[0] === coordinate[0] && element[1] === coordinate[1]) {
return true;
}
})
return false;
}
const seen = [
[0, 1]
];
console.log(contains(seen, [0, 1]))You need to change the forEach to a normal for. Right now return is returning only from the lambda.
const contains = function(arr, coordinate) {
for (const element of arr) {
if(element[0] == coordinate[0] && element[1] == coordinate[1]) {
return true;
}
}
return false;
}