Why is forEach not a function for this object

Question

This is probably something really dumb  but I don t understand why this doesn t work   var a     cat   large     a forEach function value  key  map       console log value         Uncaught TypeError  a forEach is not a function  http   jsfiddle net ty7z6pse

User · Answer

If you really need to use a secure foreach interface to iterate an object and make it reusable and clean with a npm module, then use this, https://www.npmjs.com/package/foreach-object

Ex:

import each from 'foreach-object';
   
const object = {
   firstName: 'Arosha',
   lastName: 'Sum',
   country: 'Australia'
};
   
each(object, (value, key, object) => {
   console.log(key + ': ' + value);
});
   
// Console log output will be:
//      firstName: Arosha
//      lastName: Sum
//      country: Australia

User · Answer

Object does not have forEach  it belongs to Array prototype  If you want to iterate through each key-value pair in the object and take the values  You can do this   Object keys a  forEach function  key       console log a key          Usage note  For an object v     cat   large    dog    small    bird    tiny     Object keys v  gives you an array of the keys so you get   cat   dog   bird

User · Answer

When I tried to access the result from   Object keys a  forEach function  key       console log a key         it was plain text result with no key-value pairs  Here is an example   var fruits         apple   fruits apple png       banana   fruits banana png       watermelon   watermelon jpg       grapes   grapes png       orange   orange jpg      Now i want to get all links in a separated array   but with this code       function linksOfPics obJect   Object keys obJect  forEach function x       console log      obJect x                 the result of     linksOfPics fruits      fruits apple png    fruits banana png    watermelon jpg    grapes png    orange jpg  undefined   I figured out this one which solves what I m looking for     console log Object values fruits      fruits apple png    fruits banana png    watermelon jpg    grapes png    orange jpg

[javascript] Why is "forEach not a function" for this object?

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