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Discussion on: 9 Extremely Powerful JavaScript Hacks

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taufik_nurrohman profile image
Taufik Nurrohman • • Edited

Return function shortcut:

// Before
function foo() {
    bar();
    baz();
    return 1;
}

// After
function foo() {
    return bar(), baz(), 1;
}
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Conditional shortcut variants:

// Before
return a ? a : b;

// After
return a || b;
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// Before
return a ? b : c;

// After
return a && b || c;
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// Before
return a && b ? c : d;

// After
return a && b && c || d;
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// Before
if (a && b) {
    c = d;
}

// After
a && b && (c = d);
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// Before
if (a) {
    b = c;
    d = e;
} else {
    b = e;
}
return f;

// After
return a && ((b = c), (d = e)) || (b = e), f;
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cristtopher profile image
Cristtopher Quintana Toledo •

Nice!

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razgandeanu profile image
Klaus •

Interesting.
Thank you for sharing that.

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sami_hd profile image
Sami •

Wow 😲