## Javascript: Words to numbers

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Here's my JavaScript replacement of @Greg Hewgill's Python module, minus the testing from the bottom of the code:

var Small = { 'zero': 0, 'one': 1, 'two': 2, 'three': 3, 'four': 4, 'five': 5, 'six': 6, 'seven': 7, 'eight': 8, 'nine': 9, 'ten': 10, 'eleven': 11, 'twelve': 12, 'thirteen': 13, 'fourteen': 14, 'fifteen': 15, 'sixteen': 16, 'seventeen': 17, 'eighteen': 18, 'nineteen': 19, 'twenty': 20, 'thirty': 30, 'forty': 40, 'fifty': 50, 'sixty': 60, 'seventy': 70, 'eighty': 80, 'ninety': 90 }; var Magnitude = { 'thousand': 1000, 'million': 1000000, 'billion': 1000000000, 'trillion': 1000000000000, 'quadrillion': 1000000000000000, 'quintillion': 1000000000000000000, 'sextillion': 1000000000000000000000, 'septillion': 1000000000000000000000000, 'octillion': 1000000000000000000000000000, 'nonillion': 1000000000000000000000000000000, 'decillion': 1000000000000000000000000000000000, }; var a, n, g; function text2num(s) { a = s.toString().split(/[\s-]+/); n = 0; g = 0; a.forEach(feach); return n + g; } function feach(w) { var x = Small[w]; if (x != null) { g = g + x; } else if (w == "hundred") { g = g * 100; } else { x = Magnitude[w]; if (x != null) { n = n + g * x g = 0; } else { alert("Unknown number: "+w); } } }

I got hung up a bit on the RegEx-ing and the for-each bug in IE, but here it is. A fairly decent conversion from Python to JavaScript, if I can say so myself, which I can't. It needs some work - "One hundred and twenty" won't work - but it's good enough for now. Of course, thanks to @Greg Hewgill for the original, written in Python.

**words-to-numbers,** convert textual words to numbers with optional fuzzy text matching. The parseInt function converts its first argument to a string, parses it, and returns an integer or NaN. If not NaN, the returned value will be the integer that is the first argument taken as a number in the specified radix (base). For example, a radix of 10 indicates to convert from a decimal number, 8 octal, 16 hexadecimal, and so on.

**JavaScript Number Methods,** There are 3 JavaScript methods that can be used to convert variables to numbers: The Number() method. The parseInt() method. The parseFloat() method. Definition and Usage The Number () function converts the object argument to a number that represents the object's value. If the value cannot be converted to a legal number, NaN is returned. Note: If the parameter is a Date object, the Number () function returns the number of milliseconds since midnight January 1, 1970 UTC.

I wrote a little module for Python that does this: https://github.com/ghewgill/text2num/blob/master/text2num.py

It should be straightforward to convert that to Javascript.

**words-to-numbers JavaScript and Node.js code examples,** async handle(handlerInput) { const tracer = thundra.tracer(); const span = tracer. startSpan('AskBookInfoIntent'); let speechText = ''; if (handlerInput. Learn how to convert a string to a number using JavaScript. This takes care of the decimals as well. Number is a wrapper object that can perform many operations. If we use the constructor (new Number("1234")) it returns us a Number object instead of a number value, so pay attention.

**How to convert a string to a number in JavaScript,** JavaScript provides various ways to convert a string value into a number. Best: use the Number object. The best one in my opinion is to use the� Words To Numbers. Convert words to numbers. Optionally fuzzy match the words to numbers. npm install words-to-numbers If the whole string passed is a number then it will return a Number type otherwise it will return the original string with all instances of numbers replaced. TODO: Add functionality for parsing mixed numbers and words. PRs welcome.

**Converting Numbers Into Words Using JavaScript,** It is easy to show the results of calculations as numbers, but converting numbers into word form is more complex. This JavaScript lets you do� A. Use a library To convert numbers to words with Javascript, we are going to use the numberToWords package. This module contains some util methods for converting numbers into words, ordinal words and ordinal numbers. You can install this module with npm executing (as this module is registered on npm, it works perfectly with Node.js too):

**How to convert numbers to words (number spelling) in Javascript ,** This module contains some util methods for converting numbers into words, ordinal words and ordinal numbers. You can install this module with� I am making a code which converts the given amount into words, heres is what I have got after googling. But I think its a little lengthy code to achieve a simple task. Two Regular Expressions and t

##### Comments

- What about punctuation, e.g., "twenty-two" versus "twenty two". What about "I like cookies: I ate one-hundred and twenty were left over for later." (Which should obviously be "...I ate 100 and 20 were left...", not "...I ate 120 were left...".) What I'm saying is it could be difficult if not impossible to identify exactly which parts of the string form discrete numbers. Unless there is a very restricted range of numbers to identify, e.g., just zero through twenty or something like that...
- Nope, no homework or job interviews. It's
**summer**! That eliminates a homework assignment. Plus, I was tired, and couldn't find anything else that did the job, and got stuck when trying to write my own (it broke half the time, part of which I suspect is a Chrome bug) Plus, there's @nnnnnn's comment and a few other issues inherent in parsing text. - I just noticed that "sextillion" was spelled incorrectly in my code. I've changed it on github.
- if(w == "and"){return}
- This doesn't work correctly if you have text with multiple numbers (e.g. "Nineteen days to my desired million");
- doesn't work if the number is "million" instead of "one million"
- However what I have done is to add
`'a': 1`

, to the Small list :-) Thanks for your effort. - I cannot install this package on my machine...
- it works I assure you - can you create a ticket here? github.com/finnfiddle/words-to-numbers/issues
- This looks awesome! Does it include a way to get the number values, rather than just converting the string? Something like
`wordsToNumbers("boil ten eggs for five minutes").getValues() // returns [10, 5]`

- Awesome, thanks. I'll post something here as an answer when I've converted it, which shouldn't be long.