JavaScript or jQuery string ends with utility function

找出字符串是否以特定值结尾的最简单方法是什么？

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you could use Regexps, like this:

str.match(/value$/)

which would return true if the string has 'value' at the end of it ($).

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从prototypejs窃取：

String.prototype.endsWith = function(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === d;
};

'slaughter'.endsWith('laughter');
// -> true

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常用表达

"Hello world".match(/world$/)

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