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perf(copy): avoid regex in isTypedArray #12054

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perf(copy): avoid regex in isTypedArray #12054

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4 changes: 2 additions & 2 deletions src/Angular.js
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Original file line number Diff line number Diff line change
Expand Up @@ -659,9 +659,9 @@ function isPromiseLike(obj) {
}


var TYPED_ARRAY_REGEXP = /^\[object (Uint8(Clamped)?)|(Uint16)|(Uint32)|(Int8)|(Int16)|(Int32)|(Float(32)|(64))Array\]$/;
var TYPED_ARRAY_REGEXP = /^\[object (?:Uint8|Uint8Clamped|Uint16|Uint32|Int8|Int16|Int32|Float32|Float64)Array\]$/;
function isTypedArray(value) {
return TYPED_ARRAY_REGEXP.test(toString.call(value));
return value && isNumber(value.length) && TYPED_ARRAY_REGEXP.test(toString.call(value));
}


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