JavaScript 实现 String format with ${}

javascript
javascript

JavaScript 实现 String format with ${}

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function str_format(str, replacements) {
	return str.replace(/\$\{\w+\}/g, function(placeholderWithDelimiters) {
		var placeholderWithoutDelimiters = placeholderWithDelimiters.substring(2, placeholderWithDelimiters.length - 1);
		var stringReplacement = replacements[placeholderWithoutDelimiters] || placeholderWithDelimiters;
		return stringReplacement;
	});
}
console.log(str_format('${name} is cat', {name: 'tom'}))
console.log(str_format('${0} is cat', ['tom']))
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本文标题：JavaScript 实现 String format with ${}
本文链接：https://xxzkid.github.io/2024/javascript-string-format-1/