StringTemplateArray : Array<String>

A StringTemplateArray is the parameter passed to tagged template functions. In addition to being an array of Strings, it contains the "raw" strings before escaping is applied. See String.raw for a built in tagged template function.

Spec

Instance Properties

raw : Array<String> readonly

Returns the template parts in this as written in the source code. For example, if the template string is `\n`, this[0] will be a string of length 1 containing the new line character whereas this.raw[0] will be a string of length 2 containing '\' followed by 'n'.

Example:

const join = (strings) => "['" + strings.join("', '") + "']";

// The following mimics the normal template string behavior with logging
const myTemplate = (stringTemplateArray, ...parts) => {
  console.log('raw:   ', join(stringTemplateArray.raw));
  console.log('cooked:', join(stringTemplateArray));
  console.log('parts: ', join(parts));
  let result = stringTemplateArray[0];
  for (let i = 1; i < stringTemplateArray.length; i++) {
    result += parts[i - 1] + stringTemplateArray[i];
  }
  return result;
};

console.log('result:', myTemplate`\n`);
console.log();
console.log('result:', myTemplate`
`);
console.log();
console.log('result:', myTemplate`a\tb`);
console.log();
console.log('result:', myTemplate`A string\twith ${2}\tparts${'!'}`);

Run

Results:

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