str.substring if 2 letters
public String firstTwo(String str) {
return str.length() < 2 ? str : str.substring(0, 2);
}str.substring if 2 letters
public String firstTwo(String str) {
return str.length() < 2 ? str : str.substring(0, 2);
}substring 2
var str = "The MEAN stack is MongoDB, Express.js, AngularJS, and Node.js";
str.includes('MongoDB') //true
str.includes('Java') //false
str.includes('Node', 5) //trueCopyright © 2021 Codeinu
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