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科科 kejiweixun

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kejiweixun / understanding_js_promise.js

Last active July 22, 2018 08:54

I write these codes to help me understand js promise

	let result = 9;
	function a(){
	console.log(-1)
	return new Promise(function(resolve, reject){
	console.log(0)
	resolve('a');
	console.log(1)
	});
	};