diff options
Diffstat (limited to 'vnfmarket/src/main/webapp/vnfmarket/node_modules/lodash/lang/isNative.js')
-rw-r--r-- | vnfmarket/src/main/webapp/vnfmarket/node_modules/lodash/lang/isNative.js | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/vnfmarket/src/main/webapp/vnfmarket/node_modules/lodash/lang/isNative.js b/vnfmarket/src/main/webapp/vnfmarket/node_modules/lodash/lang/isNative.js new file mode 100644 index 00000000..3ad71445 --- /dev/null +++ b/vnfmarket/src/main/webapp/vnfmarket/node_modules/lodash/lang/isNative.js @@ -0,0 +1,48 @@ +var isFunction = require('./isFunction'), + isObjectLike = require('../internal/isObjectLike'); + +/** Used to detect host constructors (Safari > 5). */ +var reIsHostCtor = /^\[object .+?Constructor\]$/; + +/** Used for native method references. */ +var objectProto = Object.prototype; + +/** Used to resolve the decompiled source of functions. */ +var fnToString = Function.prototype.toString; + +/** Used to check objects for own properties. */ +var hasOwnProperty = objectProto.hasOwnProperty; + +/** Used to detect if a method is native. */ +var reIsNative = RegExp('^' + + fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' +); + +/** + * Checks if `value` is a native function. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, else `false`. + * @example + * + * _.isNative(Array.prototype.push); + * // => true + * + * _.isNative(_); + * // => false + */ +function isNative(value) { + if (value == null) { + return false; + } + if (isFunction(value)) { + return reIsNative.test(fnToString.call(value)); + } + return isObjectLike(value) && reIsHostCtor.test(value); +} + +module.exports = isNative; |