join method code example

Example 1: join last element of array javascript with different value

['tom', 'dick', 'harry'].join(', ').replace(/, ([^,]*)$/, ' and $1')
> "tom, dick and harry"

Example 2: javascript array to comma separated string

var colors = ["red", "blue", "green"];
var colorsCSV = colors.join(","); //"red,blue,green"

Example 3: Concatenate Item in list to strings

>>> sentence = ['this','is','a','sentence']
>>> '-'.join(sentence)
'this-is-a-sentence'

Example 4: .join in javascript

const elements = ['Sun', 'Earth', 'Moon'];

console.log(elements.join());
// output: "Sun,Earth,Moon"

console.log(elements.join(''));
// output: "SunEarthMoon"

console.log(elements.join('-'));
// output: "Sun-Earth-Moon"

Example 5: join method in python

# the join method in python is works like 
# it joins the the string that you provide to it to a sequence types(lists etc..)
flowers = [
    "Daffodil",
    "Evening Primrose",
    "Hydrangea",
    "Iris",
    "Lavender",
    "Sunflower",
    "Tiger Lilly",
]
print(", ".join(flowers))

# what the sbove code does is it joins all the flowers in list by ', '
# output = Daffodil, Evening Primrose, Hydrangea, Iris, Lavender, Sunflower, Tiger Lilly

Example 6: join function in python

"seperator".join(list/tuple)