Find and replace substring within a string using replace.
If you know the exact substring use it directly in replace and be at peace.
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let sample = "Lorem ipsum dolor sit amet ...";
sample = sample.replace("ipsum", "gypsum");
console.log("sample: ", sample); // Lorem gypsum dolor sit amet ...
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Or, use regular expressions and the massive advantages that come with it.
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sample = sample.replace(/Lorem/gi, "loremi");
console.log("sample: ", sample); // loremi ipsum dolor sit amet ...
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If you have special characters that cannot be handled by regular expressions.
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let sample = "Lorem ipsum dolor sit amet ...";
sample = sample.split("sit").join("kit");
console.log("sample: ", sample); // Lorem ipsum dolor kit amet ...
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