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generateArrayItemsLoop()

generateArrayItemsLoop(arrayVar, ctx, itemGenerator, supportsCoercion?): object

Experimental

Generates an optimized for loop for validating array items.

Parameters​

arrayVar: string​

The variable name of the array

ctx: GeneratorContext​

The generator context

itemGenerator: (varName, ctx) => object​

Code generator for each item

supportsCoercion?: boolean​

Whether to pre-allocate result array for coercions

Returns: object​

Generated code lines and updated context

code: string[]​

ctx: GeneratorContext​

Since​

2.0.0

Example​

const result = generateArrayItemsLoop("value", ctx, stringGenerator);
// result.code = [
//   'var len = value.length;',
//   'for (var i = 0; i < len; i++) {',
//   '  var item = value[i];',
//   '  if (typeof item !== "string") return "Index " + i + ": Expected string";',
//   '}'
// ]