Hello guys I need help to figure out an expression. I got phrases like
const phrases = [
"This is dummy sentences of example 05",
"It needs help of your example 2022",
"This dummy datas will be used for any example of matched needs "
]
var target = "example dummy datas 01"
expectedOutput = "This dummy datas will be used for any example of matched needs "As you see above, target's three words matches with last sentence. The purpose is to find sentence includes most matched words.
I did like
const phrases = [
"This is dummy sentences of example 05",
"It needs help of your example 2022",
"This dummy datas will be used for any example of matched needs "
]
var target = "example dummy datas 01"
target = target.split(' ')
const expectedOutput = phrases.filter(sentence => {
return target.every(word => {
return sentence.indexOf(word) !== -1
})
})
console.log(expectedOutput)But it gives nothing
Use .filter(), .some(), .includes() and .sort() methods as explained below.
const phrases = [
"This is dummy sentences of example 05",
"It needs help of your example 2022",
"This dummy datas will be used for any example of matched needs "
]
var target = "example dummy datas 01"
target = target.split(' ');
const expectedOutput = phrases
//Find if any phrases contain at least one target word
.filter( phrase => target.some(word => phrase.includes(word)) )
//Now sort the phrases in descending order of how many words matched
.sort( (a,b) => target.filter(word => b.includes(word)).length - target.filter(word => a.includes(word)).length )
//The first phrase matched the most words or at least the first and second matched the most words, otherwise return ''
[0] || '';
console.log( expectedOutput );
//Output: "This dummy datas will be used for any example of matched needs "You need to filter out the elements from the target string which are numeric:
target = target.split(' ').filter(w => isNaN(w))
This works as below:
const phrases = [
"This is dummy sentences of example 05",
"It needs help of your example 2022",
"This dummy datas will be used for any example of matched needs "
]
var target = "example dummy datas 01"
target = target.split(' ').filter(w => isNaN(w))
const expectedOutput = phrases.filter(sentence => {
return target.every(word => {
return sentence.indexOf(word) !== -1
})
})
console.log(expectedOutput)