function myReplace(str, before, after) {
if (before.charAt(0) == before.charAt(0).toUpperCase()) {
after[0].toUpperCase();
console.log(after);
after = after[0].toUpperCase() + after.substring(1, after.length);
console.log(after);
}
else {after[0] = after[0].toLowerCase;}
str = str.split(" ");
for (i = 0; i < str.length; i ++) {
if(str[i] == before) {str.splice(i, 1, after);}
}
str = str.join(' ');
return str;
}
myReplace("He is Sleeping on the couch", "Sleeping", "sitting");
changer un mot par un autre en respectant la majusculation du premier
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