Front end web development requires a solid understanding of many languages, and the scale of questions asked during the dev work could go past beyond.

Mocha says “ERROR: Unexpected token {” (using @babel/preset-env)

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I have installed “@babel/core”: “^7.7.7”, “@babel/preset-env”: “^7.8.3”, “@babel/preset-react”: “^7.7.4”, “@babel/register”: “^7.8.3”. I’m running mocha with this line (via npm’s run command): mocha –require @babel/register –require ./test/helpers.js –require ./test/dom.js –require ignore-styles ‘src/**/*.spec.js’ My .babelrc is as follows: { presets: [ [ ‘@babel/preset-env’, { “modules”: “auto” } ], ‘@babel/preset-react’ ] } All the issues I can find…

Python using apply function to skip Nan

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I am trying to preprocess a dataset to use for XGBoost by mapping the classes in each column to numerical values. A working example looks like this: from collections import defaultdict from sklearn.preprocessing import LabelEncoder import pandas as pd df1 = pd.DataFrame(data = {‘col1’: [‘A’, ‘B’,’C’,’B’,’A’], ‘col2’: [‘Z’, ‘X’,’Z’,’Z’,’Y’], ‘col3’:[‘I’,’J’,’I’,’J’,’J’]}) d = defaultdict(LabelEncoder) encodedDF =…

Getting “value must be an integer” when running my Django seeds YAML file

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I’m using Django 2.0, Python 3.7, and MySql 5.5. I have this model, from which I generated my SQL migration … class CoopType(models.Model): name = models.CharField(max_length=200, null=False) class Meta: unique_together = (“name”,) I then have this in my seeds_data.yaml file … – model: maps.cooptype pk: 11 fields: name: “Coworking Space” Upon attempting to run my…