JavaScript: counting strings that begin with 'A' within an array – why is my code not counting them all?

Advertisements I’m trying to code a loop which counts the amount of strings within the variable ‘animals’ that begin with an ‘A’. There are 8, but the console only logs 7 and I’m not sure why. const animals = [‘Alligator’, ‘Fox’, ‘Armadillo’, ‘Tiger’, ‘Anteater’, ‘Raccoon’, ‘Chicken’, ‘Sheep’, ‘Dog’, ‘Antelope’, ‘Albatross’, ‘Cat’, ‘Alpaca’, ‘Ape’, ‘Anaconda’]; let… Read More JavaScript: counting strings that begin with 'A' within an array – why is my code not counting them all?

Add columns to existing dataframe with a loop

Advertisements I try to build a dataframe with the first columns of several other dataframes with a loop. All of them have same index. df1 = pd.DataFrame(np.random.randint(0,100,size=(3, 2)), columns=list(‘AB’), index=(‘class1’, ‘class2’, ‘class3’)) df2 = pd.DataFrame(np.random.randint(0,100,size=(3, 2)), columns=list(‘CD’), index=(‘class1’, ‘class2’, ‘class3’)) df3 = pd.DataFrame(np.random.randint(0,100,size=(3, 2)), columns=list(‘EF’), index=(‘class1’, ‘class2’, ‘class3’)) df = pd.DataFrame( index=(‘class1’, ‘class2’, ‘class3’)) for… Read More Add columns to existing dataframe with a loop

image loop infinitely after clicking

Advertisements something wrong with my this code, the images are supposed to loop infinitely every 1 second after i click the start button. but when i clicked, it showed only the first image then stuck. <!DOCTYPE html> <html> <head> <h1> The traffic script</h1> <p> <button type=”button” onClick=”Cool()”><h2>Start</h2></button> </p> <script> function Cool() { setInterval(function() { Timer()… Read More image loop infinitely after clicking