Function stringifySimple

index.js:500–599

(key, value, stack)

  }

  function stringifySimple (key, value, stack) {
    switch (typeof value) {
      case 'string':
        return strEscape(value)
      case 'object': {
        if (value === null) {
          return 'null'
        }
        if (typeof value.toJSON === 'function') {
          value = value.toJSON(key)
          // Prevent calling `toJSON` again
          if (typeof value !== 'object') {
            return stringifySimple(key, value, stack)
          }
          if (value === null) {
            return 'null'
          }
        }
        if (stack.indexOf(value) !== -1) {
          return circularValue
        }

        let res = ''

        const hasLength = value.length !== undefined
        if (hasLength && Array.isArray(value)) {
          if (value.length === 0) {
            return '[]'
          }
          if (maximumDepth < stack.length + 1) {
            return '"[Array]"'
          }
          stack.push(value)
          const maximumValuesToStringify = Math.min(value.length, maximumBreadth)
          let i = 0
          for (; i < maximumValuesToStringify - 1; i++) {
            const tmp = stringifySimple(String(i), value[i], stack)
            res += tmp !== undefined ? tmp : 'null'
            res += ','
          }
          const tmp = stringifySimple(String(i), value[i], stack)
          res += tmp !== undefined ? tmp : 'null'
          if (value.length - 1 > maximumBreadth) {
            const removedKeys = value.length - maximumBreadth - 1
            res += `,"... ${getItemCount(removedKeys)} not stringified"`
          }
          stack.pop()
          return `[${res}]`
        }

        let keys = Object.keys(value)
        const keyLength = keys.length
        if (keyLength === 0) {
          return '{}'
        }
        if (maximumDepth < stack.length + 1) {
          return '"[Object]"'
        }