• This method is like _.isEqual except that it accepts customizer which is invoked to compare values. If customizer returns undefined comparisons are handled by the method instead. The customizer is invoked with up to seven arguments: (objValue, othValue [, index|key, object, other, stack]).


    • value: any

      The value to compare.

    • other: any

      The other value to compare.

    • Optional customizer: IsEqualCustomizer

      The function to customize comparisons.

    Returns boolean

    Returns true if the values are equivalent, else false.


    function isGreeting(value) {
    return /^h(?:i|ello)$/.test(value);

    function customizer(objValue, othValue) {
    if (isGreeting(objValue) && isGreeting(othValue)) {
    return true;

    var array = ['hello', 'goodbye'];
    var other = ['hi', 'goodbye'];

    _.isEqualWith(array, other, customizer);
    // => true

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