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lang-js
yourVariable !== nullbe better practice?typeof null == 'object'will not be fixed in ES6. They said:This proposal has been rejected. It was implemented in V8 but it turned out that it broke a lot of existing sites. In the spirit of One JavaScript this is not feasible.Object.prototype.toString.call(yourVar), being yourVar what you need to inspect. In case of arrays,Object.prototype.toString.call([1,2])returns[object Array]Array.isArray(yourVariable).