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JavaScript Operator Precedence Values

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Distinct Duck answered on February 16, 2021 Popularity 10/10 Helpfulness 1/10

answer JavaScript Operator Precedence Values

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JavaScript Operator Precedence Values

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console.log(3 + 10 * 2);   // logs 23
console.log(3 + (10 * 2)); // logs 23 because parentheses here are superfluous
console.log((3 + 10) * 2); // logs 26 because the parentheses change the order

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: developer.mozilla.org

Tags: javascript operator-precedence

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Contributed on Feb 16 2021

Distinct Duck

0 Answers Avg Quality 2/10

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javascript operator precedence

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RTL order only applies to exponentiation, assignment, and ternary operator.


    Name                         Order  Syntax
-----------------------------------------------------
18  Grouping                            ()
-----------------------------------------------------
17  Member Access                LTR    … . …
    Computed Member Access              … [ … ]
    new (with argument list)            new … ( … )
    Function Call                       … ( … )
    Optional Chaining            LTR    … ?. …
-----------------------------------------------------
16  new (without argument list)         new …
-----------------------------------------------------
15  Postfix Increment                   … ++
    Postfix Decrement                   … --
-----------------------------------------------------
14  Logical NOT                         ! …
    Bitwise NOT                         ~ …
    Unary Plus                          + …
    Unary Negation                      - …
    Prefix Increment                    ++ …
    Prefix Decrement                    -- …
    typeof                              typeof …
    void                                void …
    delete                              delete …
    await                               await …
-----------------------------------------------------
13  Exponentiation               RTL    … ** …
-----------------------------------------------------
12  Multiplication               LTR    … * …
    Division                     LTR    … / …
    Remainder                    LTR    … % …
-----------------------------------------------------
11  Addition                     LTR    … + …
    Subtraction                  LTR    … - …
-----------------------------------------------------
10  Left Shift                   LTR    … << …
    Arithmetic Right Shift       LTR    … >> …
    Logical Right Shift          LTR    … >>> …
-----------------------------------------------------
 9  Less Than                    LTR    … < …
    Less Than Or Equal           LTR    … <= …
    Greater Than                 LTR    … > …
    Greater Than Or Equal        LTR    … >= …
    in                           LTR    … in …
    instanceof                   LTR    … instanceof …
-----------------------------------------------------
 8  Equality                     LTR    … == …
    Inequality                   LTR    … != …
    Strict Equality              LTR    … === …
    Strick Inequality            LTR    … !== …
-----------------------------------------------------
 7  Bitwise AND                  LTR    … & …
-----------------------------------------------------
 6  Bitwise XOR                  LTR    … ^ …
-----------------------------------------------------
 5  Bitwise OR                   LTR    … | …
-----------------------------------------------------
 4  Logical AND                  LTR    … && …
-----------------------------------------------------
 3  Logical OR                   LTR    … || …
    Nullish Coalescing           LTR    … ?? …
-----------------------------------------------------
 2  Assignment                   RTL    … = …
                                 RTL    … += …
                                 RTL    … -= …
                                 RTL    … **= …
                                 RTL    … *= …
                                 RTL    … /= …
                                 RTL    … %= …
                                 RTL    … <<= …
                                 RTL    … >>= …
                                 RTL    … >>>= …
                                 RTL    … &= …
                                 RTL    … ^= …
                                 RTL    … |= …
                                 RTL    … &&= …
                                 RTL    … ||= …
                                 RTL    … ??= …
    Ternary Operator             RTL    … ? … : …
    Arrow                               … => …
    yield                               yield …
    yield*                              yield* …
    Spread                              ... …
-----------------------------------------------------
 1  Comma / Sequence             LTR    … , …

Popularity 9/10 Helpfulness 3/10 Language whatever

Source: developer.mozilla.org

Tags: javascript j

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Contributed on Dec 03 2022

Nutron

0 Answers Avg Quality 2/10

operator precedence javascript

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a = b = 5; // same as writing a = (b = 5);

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

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Contributed on May 05 2021

Old-fashioned Otter

0 Answers Avg Quality 2/10

JavaScript Operator Precedence Values

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