function

问题 I have this interface: interface IParameters { form: number; field: string; ... } I want the form property to be number or function and field to be string or function. I try something like this: interface IParameters { form: number | Function; field: string | Function; ... } I need this because in my code i use this variables like this: var form = (typeof _oParameters.form === "function" ? _oParameters.form() : _oParameters.form); var field = (typeof _oParameters.field === "function" ?

问题 I am a beginner Python user and I have come across an output to a function that I don't understand. I can't give all the code because some of it is IP at my company. I am basically using a library written by one of our devs to pull a metric from out data warehouse. I want to then use this metric value in another application to when i get the value i will pass it to my own DB. My issue is I dont understand the output of the function I am using to actually extrapolate the value I want. If

问题 I am a beginner Python user and I have come across an output to a function that I don't understand. I can't give all the code because some of it is IP at my company. I am basically using a library written by one of our devs to pull a metric from out data warehouse. I want to then use this metric value in another application to when i get the value i will pass it to my own DB. My issue is I dont understand the output of the function I am using to actually extrapolate the value I want. If

问题 Is is possible to tweak VSCode so that when function gets autocompleted it is written with () instead of just plain function name? For example when I type str and autocomplete to strlen I would like to get strlen() , it saves quite some time. 回答1: It can be solved by ticking javascript.suggest.completeFunctionCalls property up. Run code snippet to see the gif. <div style='position:relative; padding-bottom:calc(40.34% + 44px)'><iframe src='https://gfycat.com/ifr/CleverActualHornbill'

问题 Is is possible to tweak VSCode so that when function gets autocompleted it is written with () instead of just plain function name? For example when I type str and autocomplete to strlen I would like to get strlen() , it saves quite some time. 回答1: It can be solved by ticking javascript.suggest.completeFunctionCalls property up. Run code snippet to see the gif. <div style='position:relative; padding-bottom:calc(40.34% + 44px)'><iframe src='https://gfycat.com/ifr/CleverActualHornbill'

问题 In an online training video I am watching to learn Node, the narrator says that "spawn is better for longer processes involving large amounts of data, whereas execute is better for short bits of data." Why is this? What is the difference between the child_process spawn and execute functions in Node.js, and when do I know which one to use? 回答1: The main difference is the spawn is more suitable for long-running process with huge output. spawn streams input/output with child process. exec

问题 I am trying to create and return a data frame from a python function def create_df(): data = {'state': ['Ohio','Ohio','Ohio','Nevada','Nevada'], 'year': [2000,2001,2002,2001,2002], 'pop': [1.5,1.7,3.6,2.4,2.9]} df = pd.DataFrame(data) return df create_df() df I get an error that df is not defined. If I replace 'return' by 'print' I get print of the data frame correctly. Is there a way to do this? thanks 回答1: when you call create_df() python calls the function but doesn't save the result in

问题 I am trying to create and return a data frame from a python function def create_df(): data = {'state': ['Ohio','Ohio','Ohio','Nevada','Nevada'], 'year': [2000,2001,2002,2001,2002], 'pop': [1.5,1.7,3.6,2.4,2.9]} df = pd.DataFrame(data) return df create_df() df I get an error that df is not defined. If I replace 'return' by 'print' I get print of the data frame correctly. Is there a way to do this? thanks 回答1: when you call create_df() python calls the function but doesn't save the result in

问题 I am trying to create and return a data frame from a python function def create_df(): data = {'state': ['Ohio','Ohio','Ohio','Nevada','Nevada'], 'year': [2000,2001,2002,2001,2002], 'pop': [1.5,1.7,3.6,2.4,2.9]} df = pd.DataFrame(data) return df create_df() df I get an error that df is not defined. If I replace 'return' by 'print' I get print of the data frame correctly. Is there a way to do this? thanks 回答1: when you call create_df() python calls the function but doesn't save the result in

问题 I am trying to create and return a data frame from a python function def create_df(): data = {'state': ['Ohio','Ohio','Ohio','Nevada','Nevada'], 'year': [2000,2001,2002,2001,2002], 'pop': [1.5,1.7,3.6,2.4,2.9]} df = pd.DataFrame(data) return df create_df() df I get an error that df is not defined. If I replace 'return' by 'print' I get print of the data frame correctly. Is there a way to do this? thanks 回答1: when you call create_df() python calls the function but doesn't save the result in