substring
const str = 'Mozilla';
console.log(str.substring(1, 3));
// expected output: "oz"
console.log(str.substring(2));
// expected output: "zilla"substring
const str = 'Mozilla';
console.log(str.substring(1, 3));
// expected output: "oz"
console.log(str.substring(2));
// expected output: "zilla"js find index of string in string
// Find the index of a string in a given sentence
function findNemo(sentence) {
let indexOfFirst = sentence.split(' ').indexOf('Nemo') + 1;
if(indexOfFirst >= 0){
return `I found Nemo at ${indexOfFirst}!`;
}
return ("I can't find Nemo :(");
}
console.log(findNemo("I am finding Nemo !")); //"I found Nemo at 4!"
console.log(findNemo("Nemo is me")); //"I found Nemo at 1!"
console.log(findNemo("I Nemo am")); //"I found Nemo at 2!"javascript select letter in string
const str = 'Hello';
str.substring(0, 2); // => 'Hel'Copyright © 2021 Codeinu
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