My objective is to generate an array containing non-duplicate lines starting from the end of one array to the beginning of another array.
Here is what I attempted:
for(var i = len; i > 0; i--){
if(resultArray[i] != undefined && resultArray[i].match(blahRegex)){
if(lastArray[blahRegex]){
console.log("entering here")
lastArray.push(resultArray[i])
}
// console.log(resultArray[i])
}
If you're looking to filter out specific values, the filter method comes in handy.
For instance, consider the following code snippet:
const filteredArray = originalArray.filter(item => regexPattern.test(item));
However, if your objective is to exclusively keep unique values, you can achieve that by utilizing the reduce function. Here's an implementation:
const uniqueArray = originalArray.reduce((acc, item) => {
if(regexPattern.test(item) && acc.indexOf(item) === -1){
acc.push(item);
}
return acc;
}, []);
By doing this, you'll effectively preserve only the distinct values from the originalArray that match the specified regexPattern.
To achieve this, you can utilize a mix of filter along with Set:
const uniqueArray = [...new Set(originalArray.filter(item => conditionRegex.test(item)))];
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