Is there an equivalent php strpos() function in Javascript?

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I would like to know if there is a php strpos() error function in javascript on mainly for the Node.js environment and would like to know how to use it.

javascript node.js

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Trelhac, the closest function to PHP strpos in javascript is the index, where it returns an integer relative to the position of the searched string:

let valor = "Teste";

//Vai encontrar o valor
console.log(valor.indexOf("Tes"));

//Não vai encontrar o valor
console.log(valor.indexOf("tes"));

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/indexOf

In case you want to check only the contained, it is worth taking a read also on the includes:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes

  • have how I use this in if?

  • Here is an example: https://repl.it/repls/ProudDescriptiveDiscussions

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