CODEWITHSUNDEEP
javascriptlodash
Thomas
Thomas

Reputation: 3

How do I match a string to a regex using Lodash?

I'm unable to successfully match a string to a regex using Lodash.

I've would attempt the following code example:

regex = /foo/;

// ele.id might be undefined
_.result(ele.id, 'match(regex)');
_.invoke(ele.id, ['match'], [regex]);
_.invoke(ele.id, ['match'], ['regex']);

Does anyone know how to string match a regex argument using Lodash?

Upvotes: 0

Views: 3827

Answers (3)

Pida
Pida

Reputation: 988

_.invoke is the correct function to use, but your syntax is slightly wrong. Take a look at the docs: The arguments to invoke the method with (3rd parameter of invoke) are not in an array, and in your case the path argument (2nd parameter of invoke) is a simple string, too. This is how to do it:

// A string
let string = "foo";

// A matching regex (not the case in the original post)
let regex = /foo/;

// Does it match? Note there's two pairs of [] 
// that shouldn't be there in the original post.
let result = _.invoke(string, "match", regex);

// ["foo"]
console.log(result);

Upvotes: 0

Raghav Bhardwaj
Raghav Bhardwaj

Reputation: 167

you can just do it in plain Javascript. Try 

const regex = /foo/;
const testString = "bar";
if(regex.test(testString)) {
   // code..
}

Upvotes: 0

karthikdivi
karthikdivi

Reputation: 3643

Why don't you use vanilla JS for this? 

    var regex = /foo/;
    var string = "foo";
    
    console.log(regex.test(string))

Upvotes: 2

Related Questions