diff options
Diffstat (limited to 'node_modules/is-typedarray/index.js')
-rw-r--r-- | node_modules/is-typedarray/index.js | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/node_modules/is-typedarray/index.js b/node_modules/is-typedarray/index.js new file mode 100644 index 0000000..5859603 --- /dev/null +++ b/node_modules/is-typedarray/index.js @@ -0,0 +1,41 @@ +module.exports = isTypedArray +isTypedArray.strict = isStrictTypedArray +isTypedArray.loose = isLooseTypedArray + +var toString = Object.prototype.toString +var names = { + '[object Int8Array]': true + , '[object Int16Array]': true + , '[object Int32Array]': true + , '[object Uint8Array]': true + , '[object Uint8ClampedArray]': true + , '[object Uint16Array]': true + , '[object Uint32Array]': true + , '[object Float32Array]': true + , '[object Float64Array]': true +} + +function isTypedArray(arr) { + return ( + isStrictTypedArray(arr) + || isLooseTypedArray(arr) + ) +} + +function isStrictTypedArray(arr) { + return ( + arr instanceof Int8Array + || arr instanceof Int16Array + || arr instanceof Int32Array + || arr instanceof Uint8Array + || arr instanceof Uint8ClampedArray + || arr instanceof Uint16Array + || arr instanceof Uint32Array + || arr instanceof Float32Array + || arr instanceof Float64Array + ) +} + +function isLooseTypedArray(arr) { + return names[toString.call(arr)] +} |