Extract sub string from last in a string JS

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endsWith in JavaScript 29 answers

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You'll want to use the Javascript string method .substr() combined with the .length property.

function isDepreciated(var id)
{
    var id = "string value - depreciated";
    var lastdepreciated = id.substr(id.length - 13); // => "- depreciated"
    //return true or false check for true or flase
}

This gets the characters starting at id.length - 13 and, since the second argument for .substr() is omitted, continues to the end of the string.

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在你的JS中添加下面的代码

function isDepreciated(string){
   return  /(-depreciated)$/.test(string);
}

---

function isDepreciated(S) {
    var suffix = "- depreciated";
    return S.indexOf(suffix, S.length - suffix.length) !== -1;
}

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