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70 lines (63 loc) · 1.28 KB
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// Example 6
function isValidJSON(text) {
try {
JSON.parse(text);
return true;
} catch {
return false;
}
}
let is_valid_json = isValidJSON();
console.log(is_valid_json);
// Here output false
// Example 7 nasted
const nastedStatemenu = () => {
try {
try {
throw new Error("oops");
} catch (ex) {
console.error("inner", ex.message);
} finally {
console.log("finally");
}
} catch (ex) {
console.error("outer", ex.message);
}
};
console.log(nastedStatemenu());
// Example 8
const numerator = 100,
denominator = "a";
try {
console.log(numerator / denominator);
console.log(a);
} catch (error) {
console.log("An error caught");
console.log("Error message: " + error);
} finally {
console.log("Finally will execute every time");
}
// Example 9
setTimeout(function () {
try {
console.log("I'm here...");
} catch {
console.log("error is caught");
}
}, 3000);
// Example 10
const fetchEmployees = async () => {
try {
let response = await fetch("https://jsonplaceholder.typicode.com/posts/", {
method: "GET",
headers: {
"content-type": "application/json",
},
});
let json = await response.json();
return json;
} catch (error) {
return error;
}
};
console.log(fetchEmployees());