Get all Zenhub estimate totals from any given board.

ZenhubEstimates.js

var groupedEstimates = {}
// get all pipelines
var allPipelines = document.querySelectorAll('.zhc-pipeline')

allPipelines.forEach((pipeline) => {
  const key = (pipeline.querySelector('div.zhc-pipeline-header__info') || {}).innerText
  if (key) {
    // initialise properties for each pipeline
    groupedEstimates[key] = {}
  
    const allCardsWithEstimates = [...pipeline.querySelectorAll('.zhc-badge__value')]
      .map(({ offsetParent }) => offsetParent)
  
    allCardsWithEstimates.forEach((card) => {
      const { alt = 'unassigned', src = '' } = card.querySelector('.zhc-avatar img') || {}
      const username = alt.split(' ')[0]
      /* const avatar = src */ // re-enable if want to use as a extension
      const estimate = card.querySelector('.zhc-badge__value').innerText
      // set keys on each pipeline for each user, instantiate the estimate value too 0
      if (!groupedEstimates[key][username]) groupedEstimates[key][username] = 0
      // add the estimate to the running total
      groupedEstimates[key][username] += Number(estimate)
    })
  }
})

var totals = {}

for (const users of Object.values(groupedEstimates)) {
  if (Object.keys(users).length) {
      for (const [username, estimate] of Object.entries(users)) {
        if (!totals[username]) totals[username] = 0
        totals[username] += Number(estimate)
      }
  }
}

console.log(`
=============================
 ESTIMATES PER PIPELINE
=============================\n\n`
)
for (const [key, value] of Object.entries(groupedEstimates)) console.log(key, value)

Object.entries(groupedEstimates),
console.log(`
=============================
 TOTALS
=============================\n`,
totals
)

var is used so you can copy/paste as many times as you like without the console complaining that variable is already declared