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Sagot :
Assuming you mean a function that truncates a string to 20 characters:
function fullwords(s){
if (s.length > 20) {
//find the 20th character
var char20 = s.charAt(19);
//if it's a space, return the string up to that point
if (char20 == " ") {
return s.substring(0, 20);
}
//if it's not a space, find the closest space
else {
var spaceBefore = s.lastIndexOf(" ", 18);
return s.substring(0, spaceBefore);
}
}
//if the string is shorter than 20 characters, return it unchanged
else {
return s;
}
}
To use fullwords(), simply pass in a string as the only argument. The function will then return a string that is no longer than 20 characters. If the string you passed in was shorter than 20 characters, it will be returned unchanged.
Learn more on string here:
https://brainly.com/question/28290531
#SPJ4
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