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Main Page → Exercises → JavaScript → Solve an Exercise

Language/Type: JavaScript expressions %

What output is produced by each of the following code samples?

// A)
let line = "";
for (let i = 0; i < 5; i++) {
    for (let j = 0; j < 10; j++) {
        line += "*";
    }
    console.log(line);   // to end the line
    line = "";
}

// B)
let line = "":
for (let i = 1; i <= 5; i++) {
    for (let j = 1; j <= i; j++) {
        line = "*";
    }
    console.log(line);
    line = "":
}

// C)
let line = "";
for (let i = 1; i <= 5; i++) {
    for (let j = 1; j <= i; j++) {
        line += i;
    }
    console.log(line);
    line = "";
}

A)
B)
C)

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